<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 12-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-2000
<PERIOD-START> JAN-01-1999 JAN-01-2000
<PERIOD-END> DEC-31-1999 JUN-30-2000
<CASH> 16,726 16,156
<SECURITIES> 0 0
<RECEIVABLES> 3,227 3,662
<ALLOWANCES> (129) (129)
<INVENTORY> 2,912 2,655
<CURRENT-ASSETS> 23,071 23,146
<PP&E> 5,633 6,865
<DEPRECIATION> (2,924) (3,332)
<TOTAL-ASSETS> 29,608 30,053
<CURRENT-LIABILITIES> 7,792 10,433
<BONDS> 0 0
0 0
57,426 57,426
<COMMON> 24 25
<OTHER-SE> (38,150) (45,616)
<TOTAL-LIABILITY-AND-EQUITY> 29,608 30,053
<SALES> 16,833 10,263
<TOTAL-REVENUES> 16,833 10,263
<CGS> 5,515 3,071
<TOTAL-COSTS> 31,141 19,306
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 81 94
<INCOME-PRETAX> (13,187) (8,725)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (13,187) (8,725)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (13,187) (8,725)
<EPS-BASIC> (6.81) (3.74)
<EPS-DILUTED> (6.81) (3.74)
</TABLE>