Specifications

1)Output power: the RMS 2W THD = 10%
2)Frequency response :150-18000HZ (+ /-3dB) with bass， FM， MP3 function.
3)signal to noise ratio: ?Y 70 dB
4)speaker: 45mm outer diameter， magnetically shielded 4 Europe
5)external USB cable
6)Audio Size: 74.5 * 50 * 52mm
7)the USB 5V power supply or adapter DC-5V power supply can not be higher than 5.5v
special card TF card. Retractable cable to the computer， the headphone output hole
Built-in lithium battery)

Packing Accessories:

(1) speaker
(2) USB audio line
(3) wrist strap， manual
(4) internal color box
(5) Transparent plastic boxes