* Rated impedance:4Ω
* Output power:3W*2(1KHZ, THD10%)
* Supply voltage:5 v
* Frequency response:90HZ—20KHZ
* Degree of dissociation:≥85dB                               
  * Li-battery rechargeable
* Support TF card ,USB port, FM radio        
Product size: 105*68*35mm
Color box: 120*85*45mm