* Rated impedance:4Ω
* Output power:3W*2(1KHZ, THD10%)
* Supply voltage:5 v
* Frequency response:180HZ—20KHZ
* Degree of dissociation:≥85dB                                
* Li-battery rechargeable
* Support SD/MMC card ,USB port, FM radio
Product size: 150*70*28mm
Color box: 175*110*49mm