Features： 1、Excellent Performance: Car amplifier has a low frequency surging without dragging, accurate sound field positioning, and high restoration degree. 2、Good Sound Quality: Quiet sound background, thick and delicate human voice, high frequency resolution, and the sound is not harsh. 3、Function: Can realize the functions of mobile phones and computers to adjust the volume of the front and rear doors, treble, midrange, bass, and emperor position. 4、Bluetooth 5.0: This amplifier supports bluetooth music, you can use the mobile phone to connect bluetooth to play lossless bluetooth music. 5、Easy Installation: The special wiring harness for special vehicles can be directly plugged in, without damaging the original car wire, nondestructive installation. Specification： Item Type: Car Audio Amplifier Material: Metal Power Amplifier Type: Class AB Tuning Mode: 31 segments of mobile phone tuning, 31 segments of computer adjustment Operating Voltage: 10-16V Input Mode: Original vehicle high frequency 4 channel, Bluetooth, U disk, coaxial, fiber, AUX Speaker Output: 4 channels x 75W Output Impedance: 2Ω-4Ω RCA Output: 6 channels Distortion: 0.01% SNR: 100DB Bluetooth: 5.0 Fitment: Universal Package List： 1 x Car Audio Amplifier 1 x USB Cable