1) output power: RMS 6W (3W +3 W) THD = 10% 2) Frequency response :150-18000HZ (+ /-3dB) 3) signal to noise ratio: 70 dB

1)output power: RMS 6W (3W +3 W) THD = 10%2)Frequency response :150-18000HZ (+ /-3dB)3) signal to noise ratio: ≥ 70 dB4)speaker: 45mm outer diameter, magnetically shielded 4 Europe5)LINE IN connector: with 3.5mm stereo plug6)decoding U disk, TF card, FM radio function7)Power Input: 5V/1000mA original power adapter, USB 5V power supply and built-in lithium battery, can not be higher than 5.5vDecode U disk or TF card, at any time using the playback pause, volume control, FM radio, songs, up and down song selection

music angel JH-MAUK2B