Power supply: 3V.300-800mA                             

 Output power：0.75W*1  8Ohms (1KHz 10% THD) 

Frequency response：150Hz-18KHz   

Operating humidity:0-95%                    

 Sound pressure  Level: 110dB±2dB     

Feature:                                                                                                                                                                                                                      1) Small size
2) Carry-home, plug and play
3) Used for all kinds of audio products (iPod, MP3, MP4, CD)
4)Can also be powered by PC through a USB connection
5) Low power consumption design