1)Output power: the RMS 2W THD = 10% 2)speaker: 45mm outer diameter, magnetically shielded 4 Europe 3)external USB cable

1)Output power: the RMS 2W THD = 10%

2)Frequency response :150-18000HZ (+ /-3dB) with bass, FM, MP3 function.

3)signal to noise ratio: ≥ 70 dB4)speaker: 45mm outer diameter, magnetically shielded 4 Europe5)external USB cable6)Audio Size: 74.5 * 50 * 52mm7)the USB 5V power supply or adapter DC-5V power supply can not be higher than 5.5vspecial card TF card. Retractable cable to the computer, the headphone output holeBuilt-in lithium battery)

music angel speaker