SYMPHONIX DEVICES INC
S-8, 1999-11-12
ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES
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<PAGE>

       As filed with the Securities and Exchange Commission on November 12, 1999
                                                      Registration No. 333-
================================================================================
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                               -----------------

                             FORM S-8 and FORM S-3
                            REGISTRATION STATEMENT
                                     under
                          The Securities Act of 1933

                               -----------------

                            SYMPHONIX DEVICES, INC.
            (Exact name of Registrant as specified in its charter)
                               -----------------
       Delaware                                              77-0376250
       --------                                              ----------
(State or other jurisdiction of                           (I.R.S. Employer
incorporation or organization)                         Identification Number)

                               2331 Zanker Road
                            San Jose, CA 95131-1109
                   (Address of principal executive offices)

                               -----------------

                  AMENDED AND RESTATED 1994 STOCK OPTION PLAN
                       1997 EMPLOYEE STOCK PURCHASE PLAN
                           (Full title of the plans)

                               -----------------

                                   Kirk Davis
                            Chief Executive Officer
                            Symphonix Devices, Inc.
                                2331 Zanker Road
                            San Jose, CA 95131-1109
                                 (408) 232-0710
(Name, address and telephone number, including area code, of agent for service)

                               -----------------

                                   Copy to:
                             Issac J. Vaughn, Esq.
                       Wilson Sonsini Goodrich & Rosati
                           Professional Corporation
                              650 Page Mill Road
                           Palo Alto, CA 94304-1050
                                (650) 493-9300

                               -----------------

<TABLE>
<CAPTION>
                                      CALCULATION OF REGISTRATION FEE
=============================================================================================================
                                                                Proposed         Proposed
            Title of                        Maximum             Maximum           Maximum
           Securities                        Amount             Offering         Aggregate       Amount of
             to be                           to be             Price Per         Offering       Registration
           Registered                      Registered            Share             Price            Fee
- -------------------------------------------------------------------------------------------------------------
<S>                                   <C>                    <C>             <C>               <C>
Common Stock
  $0.001 par value...............     1,500,000 shares (1)   $  3.125(2)     $4,687,500

Common Stock
 $0.001 par value................       170,898 shares (3)   $  2.656(4)     $  453,948

Common Stock,
 $0.001 par value................        29,102 shares (5)   $  3.125(6)     $   90,944

     TOTAL.......................         1,700,000 shares                   $5,232,349        $ 1,455
=============================================================================================================
</TABLE>

(1) This subtotal represents the number of shares being registered pursuant to
    this Registration Statement which are issuable upon exercise of options that
    have not yet been granted under the Registrant's Amended and Restated 1994
    Stock Option Plan as of the date of this Registration Statement.

(2) Estimated in accordance with Rule 457(h) under the Securities Act of 1933,
    as amended (the "Securities Act") solely for the purpose of calculating the
    total registration fee.  Computation based upon the average of the high and
    low prices of the Registrant's Common Stock as reported by The Nasdaq Stock
    Market on November 5, 1999.

(3) This subtotal represents the number of shares being registered pursuant to
    this Registration Statement which are issuable upon exercise of options that
    have not yet been granted under the Registrant's 1997 Employee Stock
    Purchase Plan (the "Purchase Plan") as of the date of this Registration
    Statement.

(4) Estimated in accordance with Rule 457(h) under the Securities Act solely for
    the purpose of calculating the total registration fee. Computation based
    upon 85% (see explanation in following sentence) of the average of the high
    and low prices of the Common Stock as reported by The Nasdaq Stock Market on
    November 5, 1999. Pursuant to the Purchase Plan, which plan is incorporated
    by reference herein, the purchase price of a share of Common Stock shall be
    an amount equal to 85% of the fair market value of a share of Common Stock
    on the Enrollment Date or the Exercise Date (as defined in such plan),
    whichever is lower.

(5) This subtotal represents the number of shares previously issued to employees
    that are to be registered and offered by the Selling Stockholders.

(6) Estimated in accordance with Rule 457(h) under the Securities Act solely for
    the purpose of calculating the total registration fee. Computation based
    upon the average of the high and low prices of the Registrant's Common Stock
    as reported by The Nasdaq Stock Market on November 5, 1999 because the
    price at which the shares are to be sold is not currently determinable.


================================================================================

<PAGE>

     PROSPECTUS
     ----------


                            SYMPHONIX DEVICES, INC.



                                 29,102 Shares

                        Common Stock, $0.001 par value

                        ------------------------------


     This Prospectus relates to 29,102 shares (the "Shares") of the Common
Stock, $0.001 par value ("Common Stock"), of Symphonix Devices, Inc. (the
"Company"), a Delaware corporation, which may be offered from time to time by
certain stockholders listed on the Selling Stockholders table (the "Selling
Stockholders") for their own benefit.  It is anticipated that the Selling
Stockholders will offer the Shares for sale at prevailing prices in the over-
the-counter market on the date of sale.  The Company will receive no part of the
proceeds of sales made hereunder.  All expenses of registration incurred in
connection with this offering are being borne by the Company, but all selling
and other expenses incurred by the Selling Stockholders will be borne by such
Selling Stockholders.  None of the Shares offered pursuant to this Prospectus
has been registered prior to the filing of the Registration Statement of which
this Prospectus is a part.

                        ------------------------------

     The Selling Stockholders and any broker executing selling orders on behalf
of the Selling Stockholders may be deemed to be an "underwriter" within the
meaning of the Securities Act of 1933, as amended (the "Securities Act"), in
which event commissions received by such broker may be deemed to be underwriting
commissions under the Securities Act.

     The Common Stock of the Company is traded in the over-the-counter market.
On November 11, 1999, the closing price of the Company's Common Stock, as
reported by The Nasdaq Stock Market was $3 1/8 (NASDAQ Symbol:  SMPX).

  THE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
      EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
         SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
           COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
             PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY IS A
                             CRIMINAL OFFENSE.

                        ------------------------------

               The date of this Prospectus is November 12, 1999.

     No person is authorized to give any information or to make any
representations, other than those contained in this Prospectus, in connection
with the offering described herein, and, if given or made, such information or
representations must not be relied upon as having been authorized by the Company
or the Selling Stockholders.  This Prospectus does not constitute an offer to
sell, or a solicitation of an offer to buy, nor shall there be any sale of these
securities by any person in any jurisdiction in which it is unlawful for such
person to make such offer, solicitation or sale.  Neither the delivery of this
Prospectus nor any sale made hereunder shall under any circumstances create an
implication that the information contained herein is correct as of any time
subsequent to the date hereof.

                        ------------------------------

     The Company hereby undertakes to provide without charge to each person to
whom a copy of this Prospectus is delivered, upon written or oral request of any
such person, a copy of any and all of the information that has been or may be
incorporated by reference in this Prospectus, other than exhibits to such
documents.  Requests for such copies should be directed to the Chief Financial
Officer, Symphonix Devices, Inc., 2331 Zanker Road, San Jose, California 95131-
1109.  The Company's telephone number at that location is (408) 232-0710.

                         -----------------------------

     The Company is subject to the informational reporting requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
accordance therewith shall file reports, proxy statements and other information
with the Securities and Exchange Commission (the "Commission").  Such reports,
proxy statements and other information can be inspected and copied at the Public
Reference Room of the Commission, 450 Fifth Street, N.W., Washington, D.C. 20549
and at the Commission's regional offices at Northwestern Atrium Center, 500 West
Madison Street, Suite 1400, Chicago, Illinois 60661 and Seven World Trade
Center, New York, New York 10048.  Copies of such material can be obtained from
the Public Reference Section of the Commission, 450 Fifth Street, Washington,
D.C. 20549, at prescribed rates.  Information, as of particular dates,
concerning directors and officers of the Company, their remuneration, options
granted to them, the principal holders of securities of the Company, and any
material interest of such persons in transactions with the Company will be
disclosed in the proxy statements to be distributed to stockholders of the
Company and filed with the Commission.

                                      -2-
<PAGE>

                            SYMPHONIX DEVICES, INC.

                                  THE COMPANY

     Symphonix Devices, Inc. (the "Company") was incorporated in California in
May 1994 and reincorporated in Delaware in December 1997.   Its principal
executive offices are located at 2331 Zanker Road, San Jose, California 95131-
1109 and its telephone number at that address is (408) 232-0710.  The Common
Stock of the Company is traded on the Nasdaq National Market and is quoted under
the symbol "SMPX."

                             SELLING STOCKHOLDERS

     The following table shows the names of the Selling Stockholders and the
number of shares of Common Stock (the "Shares") to be sold by them pursuant to
this Prospectus:



                 Name                                       Shares

               Kristine Ash                                 1,882
               Laurence Crosby                              3,195
               Frank Fellenz                                2,070
               Douglas Gambetta                             2,787
               Stephen Higa                                   587
               Eric Jaeger                                  2,272
               Vincent Kapral                               2,647
               Christine Menapace                           1,588
               Alfred Merriweather                          2,006
               Behzad Sadeghi                               3,009
               John Salisbury                               2,059
               Anh Truong                                   2,206
               Duane Tumlinson                              2,794
                                                           ------
                  Total                                    29,102


     As of November 12, 1999, and prior to this offering, Kristine Ash, an
employee of the Company, owned 1,882 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 1,882 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Laurence Crosby an
employee of the Company, owned 3,195 shares of Common Stock, equal to
approximately 0.03% of the outstanding Common Stock of the Company. Up to a
total of 3,195 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Frank Fellenz an
employee of the Company, owned 2,070 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 2,070 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Douglas Gambetta an
employee of the Company, owned 2,787 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 2,787 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Stephen Higa an
employee of the Company, owned 587 shares of Common Stock, equal to
approximately 0.005% of the outstanding Common Stock of the Company. Up to a

                                     -3-
<PAGE>

total of 587 shares presently owned by such person may be sold pursuant to this
Prospectus.

     As of November 12, 1999 and prior to this offering, Eric Jaeger an
employee of the Company, owned 2,272 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 2,272 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Vincent Kapral an
employee of the Company, owned 2,647 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 2,647 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Christine Menapace an
employee of the Company, owned 1,588 shares of Common Stock, equal to
approximately 0.01% of the outstanding Common Stock of the Company. Up to a
total of 1,588 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Alfred Merriweather an
employee of the Company, owned 114,973 shares of Common Stock, equal to
approximately 0.9% of the outstanding Common Stock of the Company. Up to a
total of 2,006 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Behzad Sadeghi an
employee of the Company, owned 3,009 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 3,009 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, John Salisbury an
employee of the Company, owned 2,059 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 2,059 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Anh Truong an
employee of the Company, owned 2,206 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 2,206 shares presently owned by such person may be sold pursuant to
this Prospectus.

     As of November 12, 1999 and prior to this offering, Duane Tumlinson an
employee of the Company, owned 2,794 shares of Common Stock, equal to
approximately 0.02% of the outstanding Common Stock of the Company. Up to a
total of 2,794 shares presently owned by such person may be sold pursuant to
this Prospectus.

                             PLAN OF DISTRIBUTION

     The Company has been advised by the Selling Stockholders that they intend
to sell all or a portion of the shares offered hereby from time to time in the
over-the-counter market and that sales will be made at prices prevailing at the
times of such sales.  The Selling Stockholders may also make private sales
directly or through a broker or brokers, who may act as agent or as principal.
In connection with any sales, the Selling Stockholders and any brokers
participating in such sales may be deemed to be underwriters within the meaning
of the Securities Act.

     Any broker-dealer participating in such transactions as agent may receive
commissions from the Selling Stockholders (and, if such broker acts as agent for
the purchaser of such shares, from such purchaser).  Usual and customary
brokerage fees will be paid by the Selling Stockholders.  Broker-dealers may
agree with the Selling Stockholders to sell a specified number of shares at a
stipulated price per share,

                                      -4-
<PAGE>

and, to the extent such a broker-dealer is unable to do so acting as agent for
the Selling Stockholders, to purchase as principal any unsold shares at the
price required to fulfill the broker-dealer commitment to the Selling
Stockholders. Broker-dealers who acquire shares as principal may thereafter
resell such shares from time to time in transactions (which may involve crosses
and block transactions and which may involve sales to and through other broker-
dealers, including transactions of the nature described above) in the over-the-
counter market, in negotiated transactions or otherwise at market prices
prevailing at the time of sale or at negotiated prices, and in connection with
such resales may pay to or receive from the purchasers of such shares
commissions computed as described above.

     The Company has advised the Selling Stockholders that the anti-manipulative
Rules 10b-6 and 10b-7 under the Exchange Act may apply to sales in the market,
has furnished the Selling Stockholders with a copy of these Rules and has
informed them of the possible need for delivery of copies of this Prospectus.
The Selling Stockholders may indemnify any broker-dealer that participates in
transactions involving the sale of the shares against certain liabilities,
including liabilities arising under the Securities Act.  Any commissions paid or
any discounts or concessions allowed to any such broker-dealers, and, if any
such broker-dealers purchase shares as principal, any profits received on the
resale of such shares, may be deemed to be underwriting discounts and
commissions under the Securities Act.

     Upon the Company's being notified by the Selling Stockholders that any
material arrangement has been entered into with a broker-dealer for the sale of
shares through a cross or block trade, a supplemental prospectus will be filed
under Rule 424(c) under the Securities Act, setting forth the name of the
participating broker-dealer(s), the number of shares involved, the price at
which such shares were sold by the Selling Stockholders, the commissions paid or
discounts or concessions allowed by the Selling Stockholders to such broker-
dealer(s), and where applicable, that such broker-dealer(s) did not conduct any
investigation to verify the information set out in this Prospectus.

     Any securities covered by this Prospectus which qualify for sale pursuant
to Rule 144 under the Securities Act may be sold under that Rule rather than
pursuant to this Prospectus.

     There can be no assurances that the Selling Stockholders will sell any or
all of the shares of Common Stock offered hereunder.

                           SECURITIES TO BE OFFERED

     The Shares offered hereby are shares of Common Stock, $0.001 par value, of
the Company.  Each share of such Common Stock entitles the holder to one vote on
matters submitted to a vote of the stockholders (cumulative voting may not be
invoked in connection with the election of directors), a pro rata share of such
dividends as may be declared on the Common Stock and a pro rata share of assets
remaining available for distribution to stockholders upon a liquidation of the
Company.  Such Common Stock is not convertible and has no preemptive rights.
While the Board of Directors has authority, within certain limitations, to issue
shares of Preferred Stock which would have one or more preferences over the
Common Stock, no Preferred Stock is currently outstanding and the Company has no
present plans to issue any Preferred Stock.

                                      -5-
<PAGE>

                     INFORMATION INCORPORATED BY REFERENCE

     There are hereby incorporated by reference in this Prospectus the following
documents and information heretofore filed by the Company with the Commission:

     (1) The Company's Annual Report on Form 10-K for the year ended December
31, 1998 filed pursuant to Section 13 of the Exchange Act on February 25, 1999.

     (2) The Company's Quarterly Report on Form 10-Q for the quarter ended March
31, 1999 filed pursuant to Section 13 of the Exchange Act on May 17, 1999.

     (3) The Company 's Quarterly Report on Form 10-Q for the quarter ended June
30, 1999 filed pursuant to Section 13 of the Exchange Act on August 16, 1999.

     (4) The description of the Company 's Common Stock contained in the
Company's Registration Statement on Form 8-A filed on February 10, 1998 pursuant
to Section 12(g) of the Exchange Act and as declared effective on February 13,
1998.

     (5) All documents filed by the Company pursuant to Sections 13(a), 13(c),
14 and 15(d) of the Exchange Act on or after the date of this Registration
Statement and prior to the filing of a post-effective amendment which indicates
that all securities offered have been sold or which deregisters all securities
then remaining unsold shall be deemed to be incorporated by reference in this
Registration Statement and to be part hereof from the date of filing of such
documents.

                                 LEGAL MATTERS

     Counsel for the Company, Wilson, Sonsini, Goodrich & Rosati, Professional
Corporation, 650 Page Mill Road, Palo Alto, California 94304, has rendered an
opinion to the effect that the Common Stock offered hereby is duly and validly
issued, fully paid and nonassessable.

                                      -6-
<PAGE>

                            SYMPHONIX DEVICES, INC.
                  REGISTRATION STATEMENT ON FORM S-8 AND S-3

                                    PART II

                INFORMATION REQUIRED IN REGISTRATION STATEMENT

ITEM 3.    (Form S-8) Incorporation of Documents by Reference
                      ---------------------------------------

     There are hereby incorporated by reference in this Registration Statement
the following documents and information heretofore filed by Symphonix Devices,
Inc. (the "Registrant") with the Securities and Exchange Commission:

     (1) The Registrant's Annual Report on Form 10-K for the year ended December
31, 1998 filed pursuant to Section 13 of the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), on February 25, 1999.

     (2) The Registrant's Quarterly Report on Form 10-Q for the quarter ended
March 31, 1999 filed pursuant to Section 13 of the Exchange Act on May 17, 1999.

     (3) The Registrant's Quarterly Report on Form 10-Q for the quarter ended
June 30, 1999 filed pursuant to Section 13 of the Exchange Act on August 16,
1999.

     (4) The description of the Registrant's Common Stock contained in the
Registrant's Registration Statement on Form 8-A filed on February 10, 1998
pursuant to Section 12(g) of the Exchange Act and as declared effective on
February 13, 1998.

     (5) All documents filed by the Registrant pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Exchange Act on or after the date of this
Registration Statement and prior to the filing of a post-effective amendment
which indicates that all securities offered have been sold or which deregisters
all securities then remaining unsold shall be deemed to be incorporated by
reference in this Registration Statement and to be part hereof from the date of
filing of such documents.

ITEM 4.    (Form S-8) Description of Securities.
                      --------------------------

     Not applicable.

ITEM 5.    (Form S-8) Interests of Named Experts and Counsel.
                      ---------------------------------------

     Not applicable.

ITEM 6.    (Form S-8; Item 15 of Form S-3) Indemnification of Directors and
                                           --------------------------------
           Officers.
           ---------

     Section 145(a) of the Delaware General Corporation Law (the "DGCL")
provides in relevant part that "a corporation shall have power to indemnify any
person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (other than an action by or in the
right of the
<PAGE>

corporation) by reason of the fact that he is or was a director, officer,
employee or agent of the corporation, partnership, joint venture, trust or other
enterprise, against expenses (including attorneys' fees), judgments, fines and
amounts paid in settlement actually and reasonably incurred by him in connection
with such action, suit or proceeding if he acted in good faith and in a manner
he reasonably believed to be in or not opposed to the best interests of the
corporation, and, with respect to any criminal action or proceeding, had no
reasonable cause to believe his conduct was unlawful." With respect to
derivative actions, Section 145(b) of the DGCL provides in relevant part that
"[a] corporation shall have power to indemnify any person who was or is a party
or is threatened to be made a party to any threatened, pending or completed
action or suit by or in the right of the corporation to procure a judgment in
its favor . . . [by reason of his service in one of the capacities specified in
the preceding sentence] against expenses (including attorneys' fees) actually
and reasonably incurred by him in connection with the defense or settlement of
such action or suit if he acted in good faith and in a manner he reasonably
believed to be in or not opposed to the best interests of the corporation and
except that no indemnification shall be made in respect of any claim, issue or
matter as to which such person shall have been adjudged to be liable to the
corporation unless and only to the extent that the Court of Chancery or the
court in which such action or suit was brought shall determine upon application
that, despite the adjudication of liability but in view of all the circumstances
of the case, such person is fairly and reasonably entitled to indemnity for such
expenses which the Court of Chancery or such other court shall deem proper."

     The Registrant's Restated Certificate of Incorporation provides that to the
fullest extent permitted by the DGCL, no director of the Registrant shall be
personally liable to the Registrant or its stockholders for monetary damages for
breach of fiduciary duty as a director.  The Restated Certificate of
Incorporation also provides that no amendment or repeal of such provision shall
apply to or have any effect on the right to indemnification permitted thereunder
with respect to claims arising from acts or omissions occurring in whole or in
part before the effective date of such amendment or repeal whether asserted
before or after such amendment or repeal.

     The Registrant's Bylaws provide that the Registrant shall indemnify to the
fullest extent authorized by law each of its directors, officers, employees and
other agents against expenses actually and reasonably incurred in connection
with any proceeding arising by reason of the fact that such person is or was an
agent of the corporation.

     The Registrant has entered into indemnification agreements with its
directors and executive officers, in addition to the indemnification provided
for in the Registrant's Bylaws, and intends to enter into indemnification
agreements with any new directors or executive officers in the future.

ITEM 7.    (Form S-8) Exemption from Registration Claimed.
                      -----------------------------------
     Not applicable

                                      II-2
<PAGE>

ITEM 8.    (Form S-8; Item 16 of Form S-3) Item    Exhibits.
                                           -----------------

<TABLE>
<CAPTION>
 Exhibit
 Number                              Description
- --------   ---------------------------------------------------------------------
<C>        <S>
4.1        Amended and Restated 1994 Stock Option Plan.
4.2        1997 Employee Stock Purchase Plan.
5.1        Opinion of counsel as to the legality of securities being registered.
23.1       Consent of PricewaterhouseCoopers L.L.P., Independent Accountants.
23.2       Consent of PricewaterhouseCoopers L.L.P., Independent Accountants.
23.3       Consent of counsel (contained in Exhibit 5.1).
24.1       Power of Attorney (see page II-5).
</TABLE>

ITEM 9.    (Form S-8; Item 17 of Form S-3) Undertakings.
                                           -------------

     A.    The Registrant hereby undertakes:

           (1) To file, during any period in which offers or sales are being
made, a post-effective amendment to this Registration Statement to include any
material information with respect to the plan of distribution not previously
disclosed in the Registration Statement or any material change to such
information in the Registration Statement.

           (2) That, for the purpose of determining any liability under the
Securities Act, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

           (3) To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.

     B.    The Company hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Company's annual report
pursuant to Section 13(a) or Section 15(d) of the Exchange Act that is
incorporated by reference in the registration statement shall be deemed to be
a new registration statement relating to the securities offered therein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.

     C.    Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the Registrant pursuant to the Corporation Law, the Registrant's Restated
Certificate of Incorporation, the Registrant's Bylaws or the Registrant's
indemnification agreements, the Registrant has been informed that in the
opinion of the Securities and Exchange Commission such indemnification is
against public policy as expressed in the Securities Act and is therefore
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer or controlling person of the Registrant in a
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities
being registered hereunder, the Registrant will, unless in the opinion of its
counsel the question has already been settled by controlling precedent, submit
to a court of appropriate jurisdiction the question of whether such
indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.

                                      II-3
<PAGE>

Item 14 of Form S-3.  Other Expenses of Issuance and Distribution.*
                      -------------------------------------------

<TABLE>
<S>                                                                         <C>
- --------------------------------------------------------------------------------------

- --------------------------------------------------------------------------------------
Registration fee -- Securities and Exchange Commission                      $  1,455
- --------------------------------------------------------------------------------------
Blue sky fees and expenses                                                  $     -0-
- --------------------------------------------------------------------------------------
Accountant's fees                                                           $  5,000**
- --------------------------------------------------------------------------------------
Legal fees                                                                  $  2,000**
- --------------------------------------------------------------------------------------
Miscellaneous                                                               $  2,000**
- --------------------------------------------------------------------------------------
Total                                                                       $ 10,455**
- --------------------------------------------------------------------------------------

- --------------------------------------------------------------------------------------
</TABLE>

________________________

*    Represents expenses relating to the distribution by the Selling
     Stockholders pursuant to the Prospectus prepared in accordance with the
     requirement of Form S-3.  These expenses will be borne by the Company on
     behalf of the Selling Stockholders.

**   Estimated amount.

                                      II-4
<PAGE>

                                  SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and Form S-3 and has duly caused this
registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of San Jose, State of California, on this 12th
day of November, 1999.

                                   SYMPHONIX DEVICES, INC.

                                   By: /s/ Kirk Davis
                                       --------------------------------------
                                       Kirk Davis,
                                       President and Chief Executive Officer
                                       (Principal Executive Officer)

                               POWER OF ATTORNEY

     KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Kirk Davis and Alfred G. Merriweather,
jointly and severally, as his or her attorneys-in-fact, with full power of
substitution in each, for him or her in any and all capacities to sign any
amendments to this Registration Statement on Form S-8 and Form S-3, and to file
the same, with all exhibits thereto and other documents in connection therewith,
with the Securities and Exchange Commission, hereby ratifying and confirming all
that each of said attorneys-in-fact, or his substitutes, may do or cause to be
done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, as amended,
this registration statement has been signed below by the following persons in
the capacities and on the dates indicated.

<TABLE>
<CAPTION>
            Signature                                 Title                                Date
- ---------------------------------     ---------------------------------------      ---------------------
<S>                                   <C>                                          <C>
                                      President, Chief Executive Officer and
/s/ Kirk Davis                        Chairman of the Board of Directors           November 12, 1999
- ---------------------------------     (Principal Executive Officer)
(Kirk Davis)


/s/ Alfred G. Merriweather            Vice President of Finance and Chief
- ---------------------------------     Financial Officer (Principal Financial       November 12, 1999
(Alfred G. Merriweather)              and Accounting Officer)

/s/ Geoffrey R. Ball                  Director                                     November 12, 1999
- ---------------------------------
(Geoffrey R. Ball)

/s/ B. J. Cassin                      Director                                     November 12, 1999
- ---------------------------------
(B. J. Cassin)

/s/ James Corbett                     Director                                     November 12, 1999
- ---------------------------------
(James Corbett)

/s/ Michael J. Levinthal              Director                                     November 12, 1999
- ---------------------------------
(Michael J. Levinthal)
</TABLE>

                                      II-5
<PAGE>

<TABLE>
<S>                                   <C>                                         <C>
/s/ Harry S. Robbins                  Director                                    November 10, 1999
- ---------------------------------
(Harry S. Robbins)

                                      Director
- ---------------------------------
(Petri T. Vainio)
</TABLE>

                                      II-6
<PAGE>

                     SECURITIES AND EXCHANGE COMMISSION

                           Washington, D.C. 20549

- --------------------------------------------------------------------------------

                                  EXHIBITS

- --------------------------------------------------------------------------------

                 Registration Statement on Form S-8 and S-3

                           SYMPHONIX DEVICES, INC.

                              November 12, 1999
<PAGE>

                               INDEX TO EXHIBITS



 Exhibit
 Number                        Description
- --------- ------------------------------------------------------------------
    4.1   Amended and Restated 1994 Stock Option Plan.
    4.2   1997 Employee Stock Purchase Plan.
    5.1   Opinion of counsel as to legality of securities being registered.
   23.1   Consent of PricewaterhouseCoopers L.L.P., Independent Accountants.
   23.2   Consent of PricewaterhouseCoopers L.L.P., Independent Accountants.
   23.3   Consent of counsel (contained in Exhibit 5.1).
   24.1   Power of Attorney (see page II-5).


<PAGE>

                                                                     Exhibit 4.1

                            SYMPHONIX DEVICES, INC.

                  AMENDED AND RESTATED 1994 STOCK OPTION PLAN
             (as amended and restated effective February 19, 1998)


    1.  Purposes of the Plan.  The purposes of this Stock Option Plan are:
        --------------------

        .   to attract and retain the best available personnel for positions of
    substantial responsibility,

        .   to provide additional incentive to Employees, Directors and
    Consultants, and

        .   to promote the success of the Company's business.

    Options granted under the Plan may be Incentive Stock Options or
Nonstatutory Stock Options, as determined by the Administrator at the time of
grant.

    2.  Definitions.  As used herein, the following definitions shall apply:
        -----------

        (a) "Administrator" means the Board or any of its Committees as shall be
             -------------
administering the Plan, in accordance with Section 4 of the Plan.

        (b) "Applicable Laws" means the requirements relating to the
             ---------------
administration of stock option plans under U. S. state corporate laws, U.S.
federal and state securities laws, the Code, any stock exchange or quotation
system on which the Common Stock is listed or quoted and the applicable laws of
any foreign country or jurisdiction where Options are, or will be, granted under
the Plan.

        (c) "Board" means the Board of Directors of the Company.
             -----

        (d) "Code" means the Internal Revenue Code of 1986, as amended.
             ----

        (e) "Committee"  means a committee of Directors appointed by the Board
             ---------
in accordance with Section 4 of the Plan.

        (f) "Common Stock" means the common stock of the Company.
             ------------

        (g) "Company" means Symphonix Devices, a Delaware corporation.
             -------

        (h) "Consultant" means any person, including an advisor, engaged by the
             ----------
Company or a Parent or Subsidiary to render services to such entity.

        (i) "Director" means a member of the Board.
             --------
<PAGE>

        (j) "Disability" means total and permanent disability as defined in
             ----------
Section 22(e)(3) of the Code.

        (k) "Employee" means any person, including Officers and Directors,
             --------
employed by the Company or any Parent or Subsidiary of the Company.  A Service
Provider shall not cease to be an Employee in the case of (i) any leave of
absence approved by the Company or (ii) transfers between locations of the
Company or between the Company, its Parent, any Subsidiary, or any successor.
For purposes of Incentive Stock Options, no such leave may exceed ninety days,
unless reemployment upon expiration of such leave is guaranteed by statute or
contract.  If reemployment upon expiration of a leave of absence approved by the
Company is not so guaranteed, on the 181st day of such leave any Incentive Stock
Option held by the Optionee shall cease to be treated as an Incentive Stock
Option and shall be treated for tax purposes as a Nonstatutory Stock Option.
Neither service as a Director nor payment of a director's fee by the Company
shall be sufficient to constitute "employment" by the Company.

        (l) "Exchange Act" means the Securities Exchange Act of 1934, as
             ------------
amended.

        (m) "Fair Market Value" means, as of any date, the value of Common Stock
             -----------------
determined as follows:

            (i)   If the Common Stock is listed on any established stock
exchange or a national market system, including without limitation the Nasdaq
National Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market, its
Fair Market Value shall be the closing sales price for such stock (or the
closing bid, if no sales were reported) as quoted on such exchange or system for
the last market trading day prior to the time of determination, as reported in
The Wall Street Journal or such other source as the Administrator deems
reliable;

            (ii)  If the Common Stock is regularly quoted by a recognized
securities dealer but selling prices are not reported, the Fair Market Value of
a Share of Common Stock shall be the mean between the high bid and low asked
prices for the Common Stock on the last market trading day prior to the day of
determination, as reported in The Wall Street Journal or such other source as
the Administrator deems reliable; or

            (iii) In the absence of an established market for the Common Stock,
the Fair Market Value shall be determined in good faith by the Administrator.

        (n) "Incentive Stock Option" means an Option intended to qualify as an
             ----------------------
incentive stock option within the meaning of Section 422 of the Code and the
regulations promulgated thereunder.

        (o) "Nonstatutory Stock Option" means an Option not intended to qualify
             -------------------------
as an Incentive Stock Option.

                                      -2-
<PAGE>

        (p)  "Notice of Grant" means a written or electronic notice evidencing
              ---------------
certain terms and conditions of an individual Option grant.  The Notice of Grant
is part of the Option Agreement.

        (q)  "Officer" means a person who is an officer of the Company within
              -------
the meaning of Section 16 of the Exchange Act and the rules and regulations
promulgated thereunder.

        (r)  "Option" means a stock option granted pursuant to the Plan.
              ------

        (s)  "Option Agreement" means an agreement between the Company and an
              ----------------
Optionee evidencing the terms and conditions of an individual Option grant.  The
Option Agreement is subject to the terms and conditions of the Plan.

        (t)  "Option Exchange Program" means a program whereby outstanding
              -----------------------
Options are surrendered in exchange for Options with a lower exercise price.

        (u)  "Optioned Stock" means the Common Stock subject to an Option.
              --------------

        (v)  "Optionee" means the holder of an outstanding Option granted under
              --------
the Plan.

        (w)  "Parent" means a "parent corporation," whether now or hereafter
              ------
existing, as defined in Section 424(e) of the Code.

        (x)  "Plan" means this 1994 Stock Option Plan.
              ----

        (y)  "Rule 16b-3" means Rule 16b-3 of the Exchange Act or any successor
              ----------
to Rule 16b-3, as in effect when discretion is being exercised with respect to
the Plan.

        (z)  "Section 16(b)" means Section 16(b) of the Exchange Act.
              -------------

        (aa) "Service Provider" means an Employee, Director or Consultant.
              ----------------

        (bb) "Share" means a share of the Common Stock, as adjusted in
              -----
accordance with Section 13 of the Plan.

        (cc) "Subsidiary" means a "subsidiary corporation", whether now or
              ----------
hereafter existing, as defined in Section 424(f) of the Code.

    3.  Stock Subject to the Plan.  Subject to the provisions of Section 13 of
        -------------------------
the Plan, the maximum aggregate number of Shares which may be optioned and sold
under the Plan is 3,499,273 Shares.  The Shares may be authorized, but unissued,
or reacquired Common Stock.

        If an Option expires or becomes unexercisable without having been
exercised in full, or is surrendered pursuant to an Option Exchange Program, the
unpurchased Shares which were subject

                                      -3-
<PAGE>

thereto shall become available for future grant or sale under the Plan (unless
the Plan has terminated); provided, however, that Shares that have actually been
                          --------
issued under the Plan, whether upon exercise of an Option, shall not be returned
to the Plan and shall not become available for future distribution under the
Plan, except that if Shares of Restricted Stock are repurchased by the Company
at their original purchase price, such Shares shall become available for future
grant under the Plan.

    4.  Administration of the Plan.
        --------------------------

        (a) Procedure.
            ---------

            (i)   Multiple Administrative Bodies. The Plan may be administered
                  ------------------------------
by different Committees with respect to different groups of Service Providers.

            (ii)  Section 162(m). To the extent that the Administrator
                  --------------
determines it to be desirable to qualify Options granted hereunder as
"performance-based compensation" within the meaning of Section 162(m) of the
Code, the Plan shall be administered by a Committee of two or more "outside
directors" within the meaning of Section 162(m) of the Code.

            (iii) Rule 16b-3.  To the extent desirable to qualify transactions
                  ----------
hereunder as exempt under Rule 16b-3, the transactions contemplated hereunder
shall be structured to satisfy the requirements for exemption under Rule 16b-3.

            (iv)  Other Administration.  Other than as provided above, the Plan
                  --------------------
shall be administered by (A) the Board or (B) a Committee, which committee shall
be constituted to satisfy Applicable Laws.

        (b) Powers of the Administrator.  Subject to the provisions of the Plan,
            ---------------------------
and in the case of a Committee, subject to the specific duties delegated by the
Board to such Committee, the Administrator shall have the authority, in its
discretion:

            (i)   to determine the Fair Market Value;

            (ii)  to select the Service Providers to whom Options may be granted
hereunder;

            (iii) to determine the number of shares of Common Stock to be
covered by each Option granted hereunder;

            (iv)  to approve forms of agreement for use under the Plan;

            (v)   to determine the terms and conditions, not inconsistent with
the terms of the Plan, of any Option granted hereunder. Such terms and
conditions include, but are not limited to, the exercise price, the time or
times when Options may be exercised (which may be based on

                                      -4-
<PAGE>

performance criteria), any vesting acceleration or waiver of forfeiture
restrictions, and any restriction or limitation regarding any Option of the
shares of Common Stock relating thereto, based in each case on such factors as
the Administrator, in its sole discretion, shall determine;

            (vi)   to reduce the exercise price of any Option to the then
current Fair Market Value if the Fair Market Value of the Common Stock covered
by such Option shall have declined since the date the Option was granted;

            (vii)  to institute an Option Exchange Program;

            (viii) to construe and interpret the terms of the Plan and awards
granted pursuant to the Plan;

            (ix)   to prescribe, amend and rescind rules and regulations
relating to the Plan, including rules and regulations relating to sub-plans
established for the purpose of qualifying for preferred tax treatment under
foreign tax laws;

            (x)    to modify or amend each Option (subject to Section 15(c) of
the Plan), including the discretionary authority to extend the post-termination
exercisability period of Options longer than is otherwise provided for in the
Plan;

            (xi)   to allow Optionees to satisfy withholding tax obligations by
electing to have the Company withhold from the Shares to be issued upon exercise
of an Option that number of Shares having a Fair Market Value equal to the
amount required to be withheld.  The Fair Market Value of the Shares to be
withheld shall be determined on the date that the amount of tax to be withheld
is to be determined.  All elections by an Optionee to have Shares withheld for
this purpose shall be made in such form and under such conditions as the
Administrator may deem necessary or advisable;

            (xii)  to authorize any person to execute on behalf of the Company
any instrument required to effect the grant of an Option previously granted by
the Administrator;

            (xiii) to make all other determinations deemed necessary or
advisable for administering the Plan.

        (c) Effect of Administrator's Decision.  The Administrator's decisions,
            ----------------------------------
determinations and interpretations shall be final and binding on all Optionees
and any other holders of Options.

    5.  Eligibility.  Nonstatutory Stock Options may be granted to Service
        -----------
Providers.  Incentive Stock Options may be granted only to Employees.

    6.  Limitations.
        -----------

                                      -5-
<PAGE>

        (a) Each Option shall be designated in the Option Agreement as either an
Incentive Stock Option or a Nonstatutory Stock Option.  However, notwithstanding
such designation, to the extent that the aggregate Fair Market Value of the
Shares with respect to which Incentive Stock Options are exercisable for the
first time by the Optionee during any calendar year (under all plans of the
Company and any Parent or Subsidiary) exceeds $100,000, such Options shall be
treated as Nonstatutory Stock Options.  For purposes of this Section 6(a),
Incentive Stock Options shall be taken into account in the order in which they
were granted.  The Fair Market Value of the Shares shall be determined as of the
time the Option with respect to such Shares is granted.

        (b) Neither the Plan nor any Option shall confer upon an Optionee any
right with respect to continuing the Optionee's relationship as a Service
Provider with the Company, nor shall they interfere in any way with the
Optionee's right or the Company's right to terminate such relationship at any
time, with or without cause.

        (c) The following limitations shall apply to grants of Options:

            (i)   No Service Provider shall be granted, in any fiscal year of
the Company, Options to purchase more than 500,000 Shares.

            (ii)  The foregoing limitation shall be adjusted proportionately in
connection with any change in the Company's capitalization as described in
Section 13.

            (iii) If an Option is cancelled in the same fiscal year of the
Company in which it was granted (other than in connection with a transaction
described in Section 13), the cancelled Option will be counted against the limit
set forth in subsection (i) above.  For this purpose, if the exercise price of
an Option is reduced, the transaction will be treated as a cancellation of the
Option and the grant of a new Option.

    7.  Term of Plan.  Subject to Section 19 of the Plan, the Plan shall become
        ------------
effective upon its adoption by the Board.  It shall continue in effect for a
term of ten (10) years unless terminated earlier under Section 15 of the Plan.

    8.  Term of Option.  The term of each Option shall be stated in the Option
        --------------
Agreement.  In the case of an Incentive Stock Option, the term shall be ten (10)
years from the date of grant or such shorter term as may be provided in the
Option Agreement.  Moreover, in the case of an Incentive Stock Option granted to
an Optionee who, at the time the Incentive Stock Option is granted, owns stock
representing more than ten percent (10%) of the total combined voting power of
all classes of stock of the Company or any Parent or Subsidiary, the term of the
Incentive Stock Option shall be five (5) years from the date of grant or such
shorter term as may be provided in the Option Agreement.

    9.  Option Exercise Price and Consideration.
        ---------------------------------------

                                      -6-
<PAGE>

        (a) Exercise Price.  The per share exercise price for the Shares to be
            --------------
issued pursuant to exercise of an Option shall be determined by the
Administrator, subject to the following:

            (i)   In the case of an Incentive Stock Option

                  (A)  granted to an Employee who, at the time the Incentive
Stock Option is granted, owns stock representing more than ten percent (10%) of
the voting power of all classes of stock of the Company or any Parent or
Subsidiary, the per Share exercise price shall be no less than 110% of the Fair
Market Value per Share on the date of grant.

                  (B)  granted to any Employee other than an Employee described
in paragraph (A) immediately above, the per Share exercise price shall be no
less than 100% of the Fair Market Value per Share on the date of grant.

            (ii)  In the case of a Nonstatutory Stock Option, the per Share
exercise price shall be determined by the Administrator.  In the case of a
Nonstatutory Stock Option intended to qualify as "performance-based
compensation" within the meaning of Section 162(m) of the Code, the per Share
exercise price shall be no less than 100% of the Fair Market Value per Share on
the date of grant.

            (iii) Notwithstanding the foregoing, Options may be granted with a
per Share exercise price of less than 100% of the Fair Market Value per Share on
the date of grant pursuant to a merger or other corporate transaction.

        (b) Waiting Period and Exercise Dates.  At the time an Option is
            ---------------------------------
granted, the Administrator shall fix the period within which the Option may be
exercised and shall determine any conditions which must be satisfied before the
Option may be exercised.

        (c) Form of Consideration.  The Administrator shall determine the
            ---------------------
acceptable form of consideration for exercising an Option, including the method
of payment.  In the case of an Incentive Stock Option, the Administrator shall
determine the acceptable form of consideration at the time of grant.  Such
consideration may consist entirely of:

            (i)   cash;

            (ii)  check;

            (iii) promissory note;

            (iv)  other Shares which (A) in the case of Shares acquired upon
exercise of an option, have been owned by the Optionee for more than six months
on the date of surrender, and (B) have a Fair Market Value on the date of
surrender equal to the aggregate exercise price of the Shares as to which said
Option shall be exercised;

                                      -7-
<PAGE>

            (v)    consideration received by the Company under a cashless
exercise program implemented by the Company in connection with the Plan;

            (vi)   a reduction in the amount of any Company liability to the
Optionee, including any liability attributable to the Optionee's participation
in any Company-sponsored deferred compensation program or arrangement;

            (vii)  any combination of the foregoing methods of payment; or

            (viii) such other consideration and method of payment for the
issuance of Shares to the extent permitted by Applicable Laws.

    10. Exercise of Option.
        ------------------

        (a) Procedure for Exercise; Rights as a Stockholder. Any Option granted
            -----------------------------------------------
hereunder shall be exercisable according to the terms of the Plan and at such
times and under such conditions as determined by the Administrator and set forth
in the Option Agreement.  Unless the Administrator provides otherwise, vesting
of Options granted hereunder shall be tolled during any unpaid leave of absence.
An Option may not be exercised for a fraction of a Share.

            An Option shall be deemed exercised when the Company receives: (i)
written or electronic notice of exercise (in accordance with the Option
Agreement) from the person entitled to exercise the Option, and (ii) full
payment for the Shares with respect to which the Option is exercised.  Full
payment may consist of any consideration and method of payment authorized by the
Administrator and permitted by the Option Agreement and the Plan.  Shares issued
upon exercise of an Option shall be issued in the name of the Optionee or, if
requested by the Optionee, in the name of the Optionee and his or her spouse.
Until the Shares are issued (as evidenced by the appropriate entry on the books
of the Company or of a duly authorized transfer agent of the Company), no right
to vote or receive dividends or any other rights as a stockholder shall exist
with respect to the Optioned Stock, notwithstanding the exercise of the Option.
The Company shall issue (or cause to be issued) such Shares promptly after the
Option is exercised.  No adjustment will be made for a dividend or other right
for which the record date is prior to the date the Shares are issued, except as
provided in Section 13 of the Plan.

            Exercising an Option in any manner shall decrease the number of
Shares thereafter available, both for purposes of the Plan and for sale under
the Option, by the number of Shares as to which the Option is exercised.

        (b) Termination of Relationship as a Service Provider.  If an Optionee
            -------------------------------------------------
ceases to be a Service Provider, other than upon the Optionee's death or
Disability, the Optionee may exercise his or her Option within such period of
time as is specified in the Option Agreement to the extent that the Option is
vested on the date of termination (but in no event later than the expiration of
the term of such Option as set forth in the Option Agreement).  In the absence
of a specified time in the

                                      -8-
<PAGE>

Option Agreement, the Option shall remain exercisable for three (3) months
following the Optionee's termination. If, on the date of termination, the
Optionee is not vested as to his or her entire Option, the Shares covered by the
unvested portion of the Option shall revert to the Plan. If, after termination,
the Optionee does not exercise his or her Option within the time specified by
the Administrator, the Option shall terminate, and the Shares covered by such
Option shall revert to the Plan.

        (c) Disability of Optionee.  If an Optionee ceases to be a Service
            ----------------------
Provider as a result of the Optionee's Disability, the Optionee may exercise his
or her Option within such period of time as is specified in the Option Agreement
to the extent the Option is vested on the date of termination (but in no event
later than the expiration of the term of such Option as set forth in the Option
Agreement).  In the absence of a specified time in the Option Agreement, the
Option shall remain exercisable for twelve (12) months following the Optionee's
termination.  If, on the date of termination, the Optionee is not vested as to
his or her entire Option, the Shares covered by the unvested portion of the
Option shall revert to the Plan.  If, after termination, the Optionee does not
exercise his or her Option within the time specified herein, the Option shall
terminate, and the Shares covered by such Option shall revert to the Plan.

        (d) Death of Optionee.  If an Optionee dies while a Service Provider,
            -----------------
the Option may be exercised within such period of time as is specified in the
Option Agreement (but in no event later than the expiration of the term of such
Option as set forth in the Notice of Grant), by the Optionee's estate or by a
person who acquires the right to exercise the Option by bequest or inheritance,
but only to the extent that the Option is vested on the date of death.  In the
absence of a specified time in the Option Agreement, the Option shall remain
exercisable for twelve (12) months following the Optionee's termination.  If, at
the time of death, the Optionee is not vested as to his or her entire Option,
the Shares covered by the unvested portion of the Option shall immediately
revert to the Plan.  The Option may be exercised by the executor or
administrator of the Optionee's estate or, if none, by the person(s) entitled to
exercise the Option under the Optionee's will or the laws of descent or
distribution.  If the Option is not so exercised within the time specified
herein, the Option shall terminate, and the Shares covered by such Option shall
revert to the Plan.

        (e) Buyout Provisions.  The Administrator may at any time offer to buy
            -----------------
out for a payment in cash or Shares an Option previously granted based on such
terms and conditions as the Administrator shall establish and communicate to the
Optionee at the time that such offer is made.

    11. Non-Transferability of Options.  Unless determined otherwise by the
        ------------------------------
Administrator, an Option may not be sold, pledged, assigned, hypothecated,
transferred, or disposed of in any manner other than by will or by the laws of
descent or distribution and may be exercised, during the lifetime of the
Optionee, only by the Optionee.  If the Administrator makes an Option
transferable, such Option shall contain such additional terms and conditions as
the Administrator deems appropriate.

    12. Adjustments Upon Changes in Capitalization, Dissolution, Merger or Asset
        ------------------------------------------------------------------------
Sale.
- ----

                                      -9-
<PAGE>

        (a) Changes in Capitalization.  Subject to any required action by the
            -------------------------
stockholders of the Company, the number of shares of Common Stock covered by
each outstanding Option, and the number of shares of Common Stock which have
been authorized for issuance under the Plan but as to which no Options have yet
been granted or which have been returned to the Plan upon cancellation or
expiration of an Option, as well as the price per share of Common Stock covered
by each such outstanding Option, shall be proportionately adjusted for any
increase or decrease in the number of issued shares of Common Stock resulting
from a stock split, reverse stock split, stock dividend, combination or
reclassification of the Common Stock, or any other increase or decrease in the
number of issued shares of Common Stock effected without receipt of
consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration."  Such adjustment shall be made by the Board,
whose determination in that respect shall be final, binding and conclusive.
Except as expressly provided herein, no issuance by the Company of shares of
stock of any class, or securities convertible into shares of stock of any class,
shall affect, and no adjustment by reason thereof shall be made with respect to,
the number or price of shares of Common Stock subject to an Option.

        (b) Dissolution or Liquidation.  In the event of the proposed
            --------------------------
dissolution or liquidation of the Company, the Administrator shall notify each
Optionee as soon as practicable prior to the effective date of such proposed
transaction.  The Administrator in its discretion may provide for an Optionee to
have the right to exercise his or her Option until ten (10) days prior to such
transaction as to all of the Optioned Stock covered thereby, including Shares as
to which the Option would not otherwise be exercisable.  In addition, the
Administrator may provide that any Company repurchase option applicable to any
Shares purchased upon exercise of an Option shall lapse as to all such Shares,
provided the proposed dissolution or liquidation takes place at the time and in
the manner contemplated.  To the extent it has not been previously exercised, an
Option will terminate immediately prior to the consummation of such proposed
action.

        (c) Merger or Asset Sale.  In the event of a merger of the Company with
            --------------------
or into another corporation, or the sale of substantially all of the assets of
the Company, each outstanding Option shall be assumed or an equivalent option
substituted by the successor corporation or a Parent or Subsidiary of the
successor corporation.  In the event that the successor corporation refuses to
assume or substitute for the Option, the Optionee shall fully vest in and have
the right to exercise the Option as to all of the Optioned Stock, including
Shares as to which it would not otherwise be vested or exercisable.  If an
Option becomes fully vested and exercisable in lieu of assumption or
substitution in the event of a merger or sale of assets, the Administrator shall
notify the Optionee in writing or electronically that the Option shall be fully
vested and exercisable for a period of fifteen (15) days from the date of such
notice, and the Option shall terminate upon the expiration of such period.  For
the purposes of this paragraph, the Option shall be considered assumed if,
following the merger or sale of assets, the option confers the right to purchase
or receive, for each Share of Optioned Stock subject to the Option immediately
prior to the merger or sale of assets, the consideration (whether stock, cash,
or other securities or property) received in the merger or sale of assets by
holders of Common Stock for each Share held on the effective date of the
transaction (and if holders were offered a choice of consideration, the type of
consideration chosen by the holders of a

                                      -10-
<PAGE>

majority of the outstanding Shares); provided, however, that if such
consideration received in the merger or sale of assets is not solely common
stock of the successor corporation or its Parent, the Administrator may, with
the consent of the successor corporation, provide for the consideration to be
received upon the exercise of the Option, for each Share of Optioned Stock
subject to the Option, to be solely common stock of the successor corporation or
its Parent equal in fair market value to the per share consideration received by
holders of Common Stock in the merger or sale of assets.

    13. Date of Grant.  The date of grant of an Option shall be, for all
        -------------
purposes, the date on which the Administrator makes the determination granting
such Option, or such other later date as is determined by the Administrator.
Notice of the determination shall be provided to each Optionee within a
reasonable time after the date of such grant.

    14. Amendment and Termination of the Plan.
        -------------------------------------

        (a) Amendment and Termination.  The Board may at any time amend, alter,
            -------------------------
suspend or terminate the Plan.

        (b) Stockholder Approval.  The Company shall obtain stockholder approval
            --------------------
of any Plan amendment to the extent necessary and desirable to comply with
Applicable Laws.

        (c) Effect of Amendment or Termination.  No amendment, alteration,
            ----------------------------------
suspension or termination of the Plan shall impair the rights of any Optionee,
unless mutually agreed otherwise between the Optionee and the Administrator,
which agreement must be in writing and signed by the Optionee and the Company.
Termination of the Plan shall not affect the Administrator's ability to exercise
the powers granted to it hereunder with respect to Options granted under the
Plan prior to the date of such termination.

    15. Conditions Upon Issuance of Shares.
        ----------------------------------

        (a) Legal Compliance.  Shares shall not be issued pursuant to the
            ----------------
exercise of an Option unless the exercise of such Option and the issuance and
delivery of such Shares shall comply with Applicable Laws and shall be further
subject to the approval of counsel for the Company with respect to such
compliance.

        (b) Investment Representations.  As a condition to the exercise of an
            --------------------------
Option, the Company may require the person exercising such Option to represent
and warrant at the time of any such exercise that the Shares are being purchased
only for investment and without any present intention to sell or distribute such
Shares if, in the opinion of counsel for the Company, such a representation is
required.

    16. Inability to Obtain Authority.  The inability of the Company to obtain
        -----------------------------
authority from any regulatory body having jurisdiction, which authority is
deemed by the Company's counsel to be necessary to the lawful issuance and sale
of any Shares hereunder, shall relieve the Company of any

                                      -11-
<PAGE>

liability in respect of the failure to issue or sell such Shares as to which
such requisite authority shall not have been obtained.

    17. Reservation of Shares.  The Company, during the term of this Plan, will
        ---------------------
at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan.

          18.  Stockholder Approval.  The Plan shall be subject to approval by
               --------------------
the stockholders of the Company within twelve (12) months after the date the
Plan is adopted.  Such stockholder approval shall be obtained in the manner and
to the degree required under Applicable Laws.

                                      -12-

<PAGE>

                                                                     EXHIBIT 4.2


                            SYMPHONIX DEVICES, INC.

                       1997 EMPLOYEE STOCK PURCHASE PLAN


     The following constitute the provisions of the 1997 Employee Stock Purchase
Plan of Symphonix Devices, Inc.

     1.   Purpose.  The purpose of the Plan is to provide employees of the
          -------
Company and its Designated Subsidiaries with an opportunity to purchase Common
Stock of the Company through accumulated payroll deductions.  It is the
intention of the Company to have the Plan qualify as an "Employee Stock Purchase
Plan" under Section 423 of the Internal Revenue Code of 1986, as amended.  The
provisions of the Plan, accordingly, shall be construed so as to extend and
limit participation in a manner consistent with the requirements of that section
of the Code.

     2.   Definitions.
          -----------

          (a) "Board" shall mean the Board of Directors of the Company.
               -----

          (b) "Code" shall mean the Internal Revenue Code of 1986, as amended.
               ----

          (c) "Common Stock" shall mean the Common Stock of the Company.
               ------------

          (d) "Company" shall mean Symphonix Devices, Inc. and any Designated
               -------
Subsidiary of the Company.

          (e) "Compensation" shall mean all base straight time gross earnings
               ------------
and commissions, but exclusive of payments for overtime, shift premium,
incentive compensation, incentive payments, bonuses and other compensation.

          (f) "Designated Subsidiary" shall mean any Subsidiary which has been
               ---------------------
designated by the Board from time to time in its sole discretion as eligible to
participate in the Plan.

          (g) "Employee" shall mean any individual who is an Employee of the
               --------
Company for tax purposes whose customary employment with the Company is at least
twenty (20) hours per week and more than five (5) months in any calendar year.
For purposes of the Plan, the employment relationship shall be treated as
continuing intact while the individual is on sick leave or other leave of
absence approved by the Company.  Where the period of leave exceeds 90 days and
the individual's right to reemployment is not guaranteed either by statute or by
contract, the employment relationship shall be deemed to have terminated on the
91st day of such leave.

          (h) "Enrollment Date" shall mean the first day of each Offering
               ---------------
Period.
<PAGE>

          (i) "Exercise Date" shall mean the last day of each Purchase Period.
               -------------

          (j) "Fair Market Value" shall mean, as of any date, the value of
               -----------------
Common Stock determined as follows:

              (1) If the Common Stock is listed on any established stock
exchange or a national market system, including without limitation the Nasdaq
National Market or The Nasdaq SmallCap Market of The Nasdaq Stock Market, its
Fair Market Value shall be the closing sales price for such stock (or the
closing bid, if no sales were reported) as quoted on such exchange or system for
the last market trading day on the date of such determination, as reported in
The Wall Street Journal or such other source as the Administrator deems
reliable, or;

              (2) If the Common Stock is regularly quoted by a recognized
securities dealer but selling prices are not reported, its Fair Market Value
shall be the mean of the closing bid and asked prices for the Common Stock on
the date of such determination, as reported in The Wall Street Journal or such
other source as the Board deems reliable, or;

              (3) In the absence of an established market for the Common Stock,
the Fair Market Value thereof shall be determined in good faith by the Board,
or;

              (4) For purposes of the Enrollment Date of the first Offering
Period under the Plan, the Fair Market Value shall be the initial price to the
public as set forth in the final prospectus included within the registration
statement in Form S-1 filed with the Securities and Exchange Commission for the
initial public offering of the Company's Common Stock (the "Registration
Statement").

          (k)  "Offering Periods" shall mean the periods of approximately
                ----------------
twenty-four (24) months during which an option granted pursuant to the Plan may
be exercised, commencing on the first Trading Day on or after May 1 and November
1 of each year and terminating on the last Trading Day in the periods ending
twenty-four months later; provided, however, that the first Offering Period
under the Plan shall commence with the first Trading Day on or after the date on
which the Securities and Exchange Commission declares the Company's Registration
Statement effective and ending on the last Trading Day on or before April 30,
2000. The duration and timing of Offering Periods may be changed pursuant to
Section 4 of this Plan.

          (l) "Plan" shall mean this Employee Stock Purchase Plan.
               ----

          (m) "Purchase Price" shall mean an amount equal to 85% of the Fair
               --------------
Market Value of a share of Common Stock on the Enrollment Date or on the
Exercise Date, whichever is lower.

          (n) "Purchase Period" shall mean the approximately six month period
               ---------------
commencing after one Exercise Date and ending with the next Exercise Date,
except that the first

                                      -2-
<PAGE>

Purchase Period of any Offering Period shall commence on the Enrollment Date and
end with the next Exercise Date.

          (o) "Reserves" shall mean the number of shares of Common Stock covered
               --------
by each option under the Plan which have not yet been exercised and the number
of shares of Common Stock which have been authorized for issuance under the Plan
but not yet placed under option.

          (p) "Subsidiary" shall mean a corporation, domestic or foreign, of
               ----------
which not less than 50% of the voting shares are held by the Company or a
Subsidiary, whether or not such corporation now exists or is hereafter organized
or acquired by the Company or a Subsidiary.

          (q) "Trading Day" shall mean a day on which national stock exchanges
               -----------
and the Nasdaq System are open for trading.

     3.   Eligibility.
          -----------

          (a) Any Employee who shall be employed by the Company on a given
Enrollment Date shall be eligible to participate in the Plan.

          (b) Any provisions of the Plan to the contrary notwithstanding, no
Employee shall be granted an option under the Plan (i) to the extent that,
immediately after the grant, such Employee (or any other person whose stock
would be attributed to such Employee pursuant to Section 424(d) of the Code)
would own capital stock of the Company and/or hold outstanding options to
purchase such stock possessing five percent (5%) or more of the total combined
voting power or value of all classes of the capital stock of the Company or of
any Subsidiary, or (ii) to the extent that his or her rights to purchase stock
under all employee stock purchase plans of the Company and its subsidiaries
accrues at a rate which exceeds Twenty-Five Thousand Dollars ($25,000) worth of
stock (determined at the fair market value of the shares at the time such option
is granted) for each calendar year in which such option is outstanding at any
time.

     4.   Offering Periods.  The Plan shall be implemented by consecutive,
          ----------------
overlapping Offering Periods with a new Offering Period commencing on the first
Trading Day on or after May 1 and November 1 each year, or on such other date as
the Board shall determine, and continuing thereafter until terminated in
accordance with Section 20 hereof; provided, however, that the first Offering
Period under the Plan shall commence with the first Trading Day on or after the
date on which the Securities and Exchange Commission declares the Company's
Registration Statement effective and ending on the last Trading Day on or before
April 30, 2000.  The Board shall have the power to change the duration of
Offering Periods (including the commencement dates thereof) with respect to
future offerings without shareholder approval if such change is announced at
least five (5) days prior to the scheduled beginning of the first Offering
Period to be affected thereafter.

                                      -3-
<PAGE>

     5.   Participation.
          -------------

          (a) An eligible Employee may become a participant in the Plan by
completing a subscription agreement authorizing payroll deductions in the form
of Exhibit A to this Plan and filing it with the Company's payroll office prior
to the applicable Enrollment Date and by opening an account at a brokerage firm
designated by the Company.

          (b) Payroll deductions for a participant shall commence on the first
payroll following the Enrollment Date and shall end on the last payroll in the
Offering Period to which such authorization is applicable, unless sooner
terminated by the participant as provided in Section 10 hereof.

     6.   Payroll Deductions.
          ------------------

          (a) At the time a participant files his or her subscription agreement,
he or she shall elect to have payroll deductions made on each pay day during the
Offering Period in an amount not exceeding ten percent (10%) of the Compensation
which he or she receives on each pay day during the Offering Period.

          (b) All payroll deductions made for a participant shall be credited to
his or her account under the Plan and shall be withheld in whole percentages
only.  A participant may not make any additional payments into such account.

          (c) A participant may discontinue his or her participation in the Plan
as provided in Section 10 hereof, or may increase or decrease the rate of his or
her payroll deductions during the Offering Period by completing or filing with
the Company a new subscription agreement authorizing a change in payroll
deduction rate.  The Board may, in its discretion, limit the number of
participation rate changes during any Offering Period.  The change in rate shall
be effective with the first full payroll period following five (5) business days
after the Company's receipt of the new subscription agreement unless the Company
elects to process a given change in participation more quickly.  A participant's
subscription agreement shall remain in effect for successive Offering Periods
unless terminated as provided in Section 10 hereof.

          (d) Notwithstanding the foregoing, to the extent necessary to comply
with Section 423(b)(8) of the Code and Section 3(b) hereof, a participant's
payroll deductions may be decreased to zero percent (0%) at any time during a
Purchase Period.  Payroll deductions shall recommence at the rate provided in
such participant's subscription agreement at the beginning of the first Purchase
Period which is scheduled to end in the following calendar year, unless
terminated by the participant as provided in Section 10 hereof.

          (e) At the time the option is exercised, in whole or in part, or at
the time some or all of the Company's Common Stock issued under the Plan is
disposed of, the participant must make adequate provision for the Company's
federal, state, or other tax withholding obligations, if any,

                                      -4-
<PAGE>

which arise upon the exercise of the option or the disposition of the Common
Stock. At any time, the Company may, but shall not be obligated to, withhold
from the participant's compensation the amount necessary for the Company to meet
applicable withholding obligations, including any withholding required to make
available to the Company any tax deductions or benefits attributable to sale or
early disposition of Common Stock by the Employee.

     7.   Grant of Option.  On the Enrollment Date of each Offering Period, each
          ---------------
eligible Employee participating in such Offering Period shall be granted an
option to purchase on each Exercise Date during such Offering Period (at the
applicable Purchase Price) up to a number of shares of the Company's Common
Stock determined by dividing such Employee's payroll deductions accumulated
prior to such Exercise Date and retained in the Participant's account as of the
Exercise Date by the applicable Purchase Price.  In no event shall an Employee
be permitted to purchase during each Purchase Period more than $12,500 worth of
Common Stock valued at the Fair Market Value on the first day of such Offering
Period; provided, however, that such purchase shall be subject to the
limitations set forth in Sections 3(b) and 12 hereof.   Exercise of the option
shall occur as provided in Section 8 hereof, unless the participant has
withdrawn pursuant to Section 10 hereof. The option shall expire on the last day
of the Offering Period.

     8.   Exercise of Option.  Unless a participant withdraws from the Plan as
          ------------------
provided in Section 10 hereof, his or her option for the purchase of shares
shall be exercised automatically on the Exercise Date, and the maximum number of
full shares subject to option shall be purchased for such participant at the
applicable Purchase Price with the accumulated payroll deductions in his or her
account.  No fractional shares shall be purchased; any payroll deductions
accumulated in a participant's account which are not sufficient to purchase a
full share shall be retained in the participant's account for the subsequent
Purchase Period or Offering Period, subject to earlier withdrawal by the
participant as provided in Section 10 hereof.  Any other monies left over in a
participant's account after the Exercise Date shall be returned to the
participant.  During a participant's lifetime, a participant's option to
purchase shares hereunder is exercisable only by him or her.

     9.   Delivery.  As promptly as practicable after each Exercise Date on
          --------
which a purchase of shares occurs, the Company shall deposit the purchased
shares in the participants' brokerage account.

     10.  Withdrawal.
          ----------

          (a) A participant may withdraw all but not less than all the payroll
deductions credited to his or her account and not yet used to exercise his or
her option under the Plan at any time by giving written notice to the Company in
the form of Exhibit B to this Plan.  All of the participant's payroll deductions
credited to his or her account shall be paid to such participant promptly after
receipt of notice of withdrawal and such participant's option for the Offering
Period shall be automatically terminated, and no further payroll deductions for
the purchase of shares shall be made for such Offering Period.  If a participant
withdraws from an Offering Period, payroll deductions

                                      -5-
<PAGE>

shall not resume at the beginning of the succeeding Offering Period unless the
participant delivers to the Company a new subscription agreement.

          (b) A participant's withdrawal from an Offering Period shall not have
any effect upon his or her eligibility to participate in any similar plan which
may hereafter be adopted by the Company or in succeeding Offering Periods which
commence after the termination of the Offering Period from which the participant
withdraws.

     11.  Termination of Employment.
          -------------------------

          Upon a participant's ceasing to be an Employee, for any reason, he or
she shall be deemed to have elected to withdraw from the Plan and the payroll
deductions credited to such participant's account during the Offering Period but
not yet used to exercise the option shall be returned to such participant or, in
the case of his or her death, to the person or persons entitled thereto under
Section 15 hereof, and such participant's option shall be automatically
terminated.  The preceding sentence notwithstanding, a participant who receives
payment in lieu of notice of termination of employment shall be treated as
continuing to be an Employee for the participant's customary number of hours per
week of employment during the period in which the participant is subject to such
payment in lieu of notice.

     12.  Interest.  No interest shall accrue on the payroll deductions of a
          --------
participant in the Plan.

     13.  Stock.
          -----

          (a) The maximum number of shares of the Company's Common Stock which
shall be made available for sale under the Plan shall be two hundred seventy-
five thousand (275,000) shares, subject to adjustment upon changes in
capitalization of the Company as provided in Section 19 hereof.  If, on a given
Exercise Date, the number of shares with respect to which options are to be
exercised exceeds the number of shares then available under the Plan, the
Company shall make a pro rata allocation of the shares remaining available for
purchase in as uniform a manner as shall be practicable and as it shall
determine to be equitable.

          (b) The participant shall have no interest or voting right in shares
covered by his option until such option has been exercised.

          (c) Shares to be delivered to a participant under the Plan shall be
registered in the name of the participant or in the name of the participant and
his or her spouse.

     14.  Administration.  The Plan shall be administered by the Board or a
          --------------
committee of members of the Board appointed by the Board.  The Board or its
committee shall have full and exclusive discretionary authority to construe,
interpret and apply the terms of the Plan, to determine eligibility and to
adjudicate all disputed claims filed under the Plan.  Every finding, decision
and

                                      -6-
<PAGE>

determination made by the Board or its committee shall, to the full extent
permitted by law, be final and binding upon all parties.

     15.  Designation of Beneficiary.
          --------------------------

          (a) A participant may file a written designation of a beneficiary who
is to receive any shares and cash, if any, from the participant's account under
the Plan in the event of such partici  pant's death subsequent to an Exercise
Date on which the option is exercised but prior to delivery to such participant
of such shares and cash.  In addition, a participant may file a written
designation of a beneficiary who is to receive any cash from the participant's
account under the Plan in the event of such participant's death prior to
exercise of the option.  If a participant is married and the designated
beneficiary is not the spouse, spousal consent shall be required for such
designation to be effective.

          (b) Such designation of beneficiary may be changed by the participant
at any time by written notice.  In the event of the death of a participant and
in the absence of a beneficiary validly designated under the Plan who is living
at the time of such participant's death, the Company shall deliver such shares
and/or cash to the executor or administrator of the estate of the participant,
or if no such executor or administrator has been appointed (to the knowledge of
the Company), the Company, in its discretion, may deliver such shares and/or
cash to the spouse or to any one or more dependents or relatives of the
participant, or if no spouse, dependent or relative is known to the Company,
then to such other person as the Company may designate.

     16.  Transferability.  Neither payroll deductions credited to a
          ---------------
participant's account nor any rights with regard to the exercise of an option or
to receive shares under the Plan may be assigned, transferred, pledged or
otherwise disposed of in any way (other than by will, the laws of descent and
distribution or as provided in Section 15 hereof) by the participant.  Any such
attempt at assignment, transfer, pledge or other disposition shall be without
effect, except that the Company may treat such act as an election to withdraw
funds from an Offering Period in accordance with Section 10 hereof.

     17.  Use of Funds.  All payroll deductions received or held by the Company
          ------------
under the Plan may be used by the Company for any corporate purpose, and the
Company shall not be obligated to segregate such payroll deductions.

     18.  Reports.  Individual accounts shall be maintained for each participant
          -------
in the Plan. Statements of account shall be given to participating Employees at
least annually, which statements shall set forth the amounts of payroll
deductions, the Purchase Price, the number of shares purchased and the remaining
cash balance, if any.

     19.  Adjustments Upon Changes in Capitalization, Dissolution, Liquidation,
          ---------------------------------------------------------------------
          Merger or Asset Sale.
          --------------------

          (a) Changes in Capitalization.  Subject to any required action by the
              -------------------------
shareholders of the Company, the Reserves, the maximum number of shares each
participant may purchase each

                                      -7-
<PAGE>

Purchase Period (pursuant to Section 7), as well as the price per share and the
number of shares of Common Stock covered by each option under the Plan which has
not yet been exercised shall be proportionately adjusted for any increase or
decrease in the number of issued shares of Common Stock resulting from a stock
split, reverse stock split, stock dividend, combination or reclassification of
the Common Stock, or any other increase or decrease in the number of shares of
Common Stock effected without receipt of consideration by the Company; provided,
however, that conversion of any convertible securities of the Company shall not
be deemed to have been "effected without receipt of consideration". Such
adjustment shall be made by the Board, whose determination in that respect shall
be final, binding and conclusive. Except as expressly provided herein, no
issuance by the Company of shares of stock of any class, or securities
convertible into shares of stock of any class, shall affect, and no adjustment
by reason thereof shall be made with respect to, the number or price of shares
of Common Stock subject to an option.

          (b) Dissolution or Liquidation. In the event of the proposed
              --------------------------
dissolution or liquidation of the Company, the Offering Period then in progress
shall be shortened by setting a new Exercise Date (the "New Exercise Date"), and
shall terminate immediately prior to the consummation of such proposed
dissolution or liquidation, unless provided otherwise by the Board.  The New
Exercise Date shall be before the date of the Company's proposed dissolution or
liquidation.  The Board shall notify each participant in writing, at least ten
(10) business days prior to the New Exercise Date, that the Exercise Date for
the participant's option has been changed to the New Exercise Date and that the
participant's option shall be exercised automatically on the New Exercise Date,
unless prior to such date the participant has withdrawn from the Offering Period
as provided in Section 10 hereof.

          (c) Merger or Asset Sale.  In the event of a proposed sale of all or
              --------------------
substantially all of the assets of the Company, or the merger of the Company
with or into another corporation, each outstanding option shall be assumed or an
equivalent option substituted by the successor corporation or a Parent or
Subsidiary of the successor corporation.  In the event that the successor
corporation refuses to assume or substitute for the option, any Purchase Periods
then in progress shall be shortened by setting a new Exercise Date (the "New
Exercise Date") and any Offering Periods then in progress shall end on the New
Exercise Date.  The New Exercise Date shall be before the date of the Company's
proposed sale or merger.  The Board shall notify each participant in writing, at
least ten (10) business days prior to the New Exercise Date, that the Exercise
Date for the participant's option has been changed to the New Exercise Date and
that the participant's option shall be exercised automatically on the New
Exercise Date, unless prior to such date the participant has withdrawn from the
Offering Period as provided in Section 10 hereof.

     20.  Amendment or Termination.
          ------------------------

          (a) The Board of Directors of the Company may at any time and for any
reason terminate or amend the Plan.  Except as provided in Section 19 hereof, no
such termination can affect options previously granted, provided that an
Offering Period may be terminated by the Board of Directors on any Exercise Date
if the Board determines that the termination of the Plan is in the

                                      -8-
<PAGE>

best interests of the Company and its shareholders. Except as provided in
Section 19 hereof, no amendment may make any change in any option theretofore
granted which adversely affects the rights of any participant. To the extent
necessary to comply with Section 423 of the Code (or any successor rule or
provision or any other applicable law, regulation or stock exchange rule), the
Company shall obtain shareholder approval in such a manner and to such a degree
as required.

          (b) Without shareholder consent and without regard to whether any
participant rights may be considered to have been "adversely affected," the
Board (or its committee) shall be entitled to change the Offering Periods, limit
the frequency and/or number of changes in the amount withheld during an Offering
Period, establish the exchange ratio applicable to amounts withheld in a
currency other than U.S. dollars, permit payroll withholding in excess of the
amount designated by a participant in order to adjust for delays or mistakes in
the Company's processing of properly completed withholding elections, establish
reasonable waiting and adjustment periods and/or accounting and crediting
procedures to ensure that amounts applied toward the purchase of Common Stock
for each participant properly correspond with amounts withheld from the
participant's Compensation, and establish such other limitations or procedures
as the Board (or its committee) determines in its sole discretion advisable
which are consistent with the Plan.

     21.  Notices.  All notices or other communications by a participant to the
          -------
Company under or in connection with the Plan shall be deemed to have been duly
given when received in the form specified by the Company at the location, or by
the person, designated by the Company for the receipt thereof.

     22.  Conditions Upon Issuance of Shares.  Shares shall not be issued with
          ----------------------------------
respect to an option unless the exercise of such option and the issuance and
delivery of such shares pursuant thereto shall comply with all applicable
provisions of law, domestic or foreign, including, without limitation, the
Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as
amended, the rules and regulations promulgated thereunder, and the requirements
of any stock exchange upon which the shares may then be listed, and shall be
further subject to the approval of counsel for the Company with respect to such
compliance.

          As a condition to the exercise of an option, the Company may require
the person exercising such option to represent and warrant at the time of any
such exercise that the shares are being purchased only for investment and
without any present intention to sell or distribute such shares if, in the
opinion of counsel for the Company, such a representation is required by any of
the aforementioned applicable provisions of law.

     23.  Term of Plan.  The Plan shall become effective upon the earlier to
          ------------
occur of its adoption by the Board of Directors or its approval by the
shareholders of the Company.  It shall continue in effect for a term of ten (10)
years unless sooner terminated under Section 20 hereof.

     24.  Automatic Transfer to Low Price Offering Period.  To the extent
          -----------------------------------------------
permitted by any applicable laws, regulations, or stock exchange rules if the
Fair Market Value of the Common Stock

                                      -9-
<PAGE>

on any Exercise Date in an Offering Period is lower than the Fair Market Value
of the Common Stock on the Enrollment Date of such Offering Period, then all
participants in such Offering Period shall be automatically withdrawn from such
Offering Period immediately after the exercise of their option on such Exercise
Date and automatically re-enrolled in the immediately following Offering Period
as of the first day thereof.

                                      -10-
<PAGE>

                                   EXHIBIT A
                                   ---------


                            SYMPHONIX DEVICES, INC.

                       1997 EMPLOYEE STOCK PURCHASE PLAN

                            SUBSCRIPTION AGREEMENT



_____ Original Application                          Enrollment Date: ___________
_____ Change in Payroll Deduction Rate
_____ Change of Beneficiary(ies)


1.   _____________________________________________________ hereby elects to
     participate in the Symphonix Devices, Inc. 1997 Employee Stock Purchase
     Plan (the "Employee Stock Purchase Plan") and subscribes to purchase shares
     of the Company's Common Stock in accordance with this Subscription
     Agreement and the Employee Stock Purchase Plan.

2.   I hereby authorize payroll deductions from each paycheck in the amount of
     ____% of my Compensation on each payday (not to exceed 10%) during the
     Offering Period in accordance with the Employee Stock Purchase Plan.
     (Please note that no fractional percentages are permitted.)

3.   I understand that said payroll deductions shall be accumulated for the
     purchase of shares of Common Stock at the applicable Purchase Price
     determined in accordance with the Employee Stock Purchase Plan.  I
     understand that if I do not withdraw from an Offering Period, any
     accumulated payroll deductions will be used to automatically exercise my
     option.

4.   I have received a copy of the complete Employee Stock Purchase Plan.  I
     understand that my participation in the Employee Stock Purchase Plan is in
     all respects subject to the terms of the Plan.  I understand that my
     ability to exercise the option under this Subscription Agreement is subject
     to shareholder approval of the Employee Stock Purchase Plan.

5.   Shares purchased for me under the Employee Stock Purchase Plan should be
     issued in the name(s) of (Employee or Employee and Spouse only):
     ________________________________________________________________________.

6.   I understand that if I dispose of any shares received by me pursuant to the
     Plan within 2 years after the Enrollment Date (the first day of the
     Offering Period during which I purchased such shares) or one year after the
     Exercise Date, I will be treated for federal income tax purposes as having
     received ordinary income at the time of such disposition in an amount equal
     to the excess of the fair market value of the shares at the time such
     shares were purchased by me over the price which I paid for the shares.  I
                                                                              -
     hereby agree to notify the Company in writing
     ---------------------------------------------
<PAGE>

     within 30 days after the date of any disposition of my shares and I will
     ------------------------------------------------------------------------
     make adequate provision for Federal, state or other tax withholding
     -------------------------------------------------------------------
     obligations, if any, which arise upon the disposition of the Common Stock.
     --------------------------------------------------------------------------
     The Company may, but will not be obligated to, withhold from my
     compensation the amount necessary to meet any applicable withholding
     obligation including any withholding necessary to make available to the
     Company any tax deductions or benefits attributable to sale or early
     disposition of Common Stock by me. If I dispose of such shares at any time
     after the expiration of the 2-year and 1-year holding periods, I understand
     that I will be treated for federal income tax purposes as having received
     income only at the time of such disposition, and that such income will be
     taxed as ordinary income only to the extent of an amount equal to the
     lesser of (1) the excess of the fair market value of the shares at the time
     of such disposition over the purchase price which I paid for the shares, or
     (2) 15% of the fair market value of the shares on the first day of the
     Offering Period. The remainder of the gain, if any, recognized on such
     disposition will be taxed as capital gain.

7.   I hereby agree to be bound by the terms of the Employee Stock Purchase
     Plan.  The effectiveness of this Subscription Agreement is dependent upon
     my eligibility to participate in the Employee Stock Purchase Plan.

8.   In the event of my death, I hereby designate the following as my
     beneficiary(ies) to receive all payments and shares due me under the
     Employee Stock Purchase Plan:


NAME:  (Please print)______________________________________________
                      (First)         (Middle)               (Last)


______________________        ______________________________________________
Relationship

                              _____________________________________________
                              (Address)
<PAGE>

Employee's Social
Security Number:                    ____________________________________



Employee's Address:                 ____________________________________

                                    ____________________________________

                                    ____________________________________


I UNDERSTAND THAT THIS SUBSCRIPTION AGREEMENT SHALL REMAIN IN EFFECT THROUGHOUT
SUCCESSIVE OFFERING PERIODS UNLESS TERMINATED BY ME.



Dated:_______________     ___________________________________________________
                          Signature of Employee


                          ___________________________________________________
                          Spouse's Signature (If beneficiary other than spouse)
<PAGE>

                                   EXHIBIT B
                                   ---------


                            SYMPHONIX DEVICES, INC.

                       1997 EMPLOYEE STOCK PURCHASE PLAN

                             NOTICE OF WITHDRAWAL



     The undersigned participant in the Offering Period of the Symphonix
Devices, Inc. 1997 Employee Stock Purchase Plan which began on ____________,
19____ (the "Enrollment Date") hereby notifies the Company that he or she hereby
withdraws from the Offering Period.  He or she hereby directs the Company to pay
to the undersigned as promptly as practicable all the payroll deductions
credited to his or her account with respect to such Offering Period. The
undersigned understands and agrees that his or her option for such Offering
Period will be automatically terminated.  The undersigned understands further
that no further payroll deductions will be made for the purchase of shares in
the current Offering Period and the undersigned shall be eligible to participate
in succeeding Offering Periods only by delivering to the Company a new
Subscription Agreement.

                                    Name and Address of Participant:

                                    ________________________________

                                    ________________________________

                                    ________________________________


                                    Signature:


                                    ________________________________


                                    Date:__________________________

<PAGE>

                                                                     Exhibit 5.1
                                                                     -----------

                              November 12, 1999

Symphonix Devices, Inc.
2331 Zanker Road
San Jose, CA 95131-1109

     Re: Registration Statement on Form S-8 and S-3
         ------------------------------------------

Ladies and Gentlemen:

     We have examined the Registration Statement on Form S-8 and Form S-3 to be
filed by you with the Securities and Exchange Commission on November 12, 1999
(the "Registration Statement"), in connection with the registration under the
Securities Act of 1933, as amended, of 1,700,000 shares of your Common Stock,
par value $0.001 per share (the "Shares"), (i) 1,500,000 shares of which are to
be issued pursuant to options under the Amended and Restated 1994 Stock Option
Plan, (ii) 170,898 shares of which are to be issued pursuant to the 1997
Employee Stock Purchase Plan (collectively, the "Plans") and (iii) 29,102 shares
(the "Issued Shares") of which have previously been issued to employees of
Symphonix Devices, Inc. pursuant to the 1997 Employee Stock Purchase Plan. As
your counsel in connection with this transaction, we have examined the
proceedings taken and are familiar with the proceedings proposed to be taken
by you in connection with the issuance and sale of the Shares pursuant to the
Plans and the proceedings taken and proposed to be taken in connection
with the resale of the Issued Shares.

     It is our opinion that, when issued and sold in the manner described in the
Plans and pursuant to the agreements which accompany each grant under the
Plans, the Shares will be legally and validly issued, fully-paid and non-
assessable and that, upon completion of the proceedings being taken or
contemplated by us, as your counsel, prior to the resale of the Issued Shares
pursuant to the Prospectus constituting part of the Registration Statement on
Form S-3 in order to permit such resales to be carried out in accordance with
the securities laws of the various states where required, the Issued Shares
are, and when resold in the manner referred to in the Registration Statement
will be, legally and validly issued, fully paid and non-assessable.

     We consent to the use of this opinion as an exhibit to the Registration
Statement, and further consent to the use of our name wherever appearing in the
Registration Statement and any amendments thereto.

                         Very truly yours,

                         WILSON SONSINI GOODRICH & ROSATI

                         /s/ Wilson Sonsini Goodrich & Rosati

<PAGE>

                                                                    Exhibit 23.1



                      CONSENT OF INDEPENDENT ACCOUNTANTS
                      ----------------------------------


     We hereby consent to the incorporation by reference in this Registration
Statement on Form S-3 of our reports dated January 22, 1999 relating to the
financial statements and financial statement schedule, which appears in
Symphonix Devices, Inc.'s Annual Report on Form 10-K for the year ended December
31, 1998.

PRICEWATERHOUSECOOPERS
San Jose, CA
November 12, 1999

<PAGE>

                                                                    Exhibit 23.2



                      CONSENT OF INDEPENDENT ACCOUNTANTS
                      ----------------------------------


     We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our reports dated January 22, 1999 relating to the
financial statements and financial statement schedule of Symphonix Devices,
Inc., which appears in Symphonix Devices, Inc.'s Annual Report on Form 10-K for
the year ended December 31, 1998.


PRICEWATERHOUSECOOPERS
San Jose, CA
November 12, 1999


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