★ Output power: RMS 6W (3W +3 W) THD = 10%
 ★ Frequency response :150-18000HZ (+ /-3dB)
 ★ signal to noise ratio: ≥ 70 dB
 ★ Speaker: diameter 45mm, 4 ohm shielded
 ★ LINE IN connector: 3.5mm stereo plug with
 ★ decoding U disk, TF card and FM radio
 ★ Power Input: 5V/1000mA the original power adapter, USB 5V power supply and built-in lithium battery, can not be higher than 5.5v
 ★ In the decoding U disk or TF card, ready to use play pause, volume adjustment, FM radio, the song up and down song selection function                                                               Color:Black Sliver,Green,Blue,Pink