* Rated impedance:4Ω
* Output power:2W*1(1KHZ, THD10%)
* Supply voltage:5 v
* Frequency response:180HZ—20KHZ
* S/N:≥85dB                                                           
* Li-battery rechargeable                                           
* Support TF card
Product size: 58*58*35mm
Color box: 60*60*55mm