Rated Impedance：       4Ω±0.5Ω
Output Power：          3W（1KHZ，THD10%）
Supply Voltage：         3V（3——4.5V,  2*AA）
Circuit Current：         ≤300mA
Frequency Response：   （150HZ——20KHZ），
Supply Voltage Rejection： ≥48dB

Feature:                                                                                                                                                                                                 1) 2.0speaker for computer,pc/mp3/4                                                                                                                                                                    2) Carry-home, plug and play                                                                                                                                                                      3) Clearly sound and lower price                                                                                                                                                       4)Can also be powered by PC through a USB connection
5) Low power consumption design