Subwoofer and high volume automatic induction sound $ 9.42 Material: ABS environmental protection material Machine power: 3W Play time: 6 hours Standard sizes 144 X 94X 104mm Capacity: 750mAh Weight: 260G Body-to-noise ratio: 80d8 Power socket: MICRO USB Input circuit: DC. 5V1500mA Distortion: <3% Maximum volume: 93db+(-)3% Sensitivity: (induced voltage) 40mw
