Power amplifier IC; TPA3116 Bluetooth decoding IC:BP1048B2 Output power:50W*2 Frequency response:20Hz-20KHz (3DB) Audio input:3.5mm AUX, Bluetooth, USB flash drive, PRE OUT Bluetooth version:V5.3 Signal-to-noise ratio S: equal 92dB Distortion/:less than equal 0.1% (1KHZ 1W) Input sensitivity:1.5V Audio channel system:two-channel Speaker impedance/IMP:2-8OHM Power input:DC12-24V Advantages:TPA3116D2 power amplifier, power reverse connection protection Type:A:Only Digital amplifier Colour:Black Material:abs Package Contents: 1 * Digital amplifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.