Feature 1Excellent Performance: Car amplifier has a low frequency surging without dragging, accurate sound field positioning, and high restoration degree. 2Good Sound Quality: Quiet sound background, thick and delicate human voice, high frequency resolution, and the sound is not harsh. 3Function: 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. 4Bluetooth 5.0: This amplifier supports bluetooth music, you can use the mobile phone to connect bluetooth to play lossless bluetooth music. 5Easy Installation: The special wiring harness for special vehicles can be directly plugged in, without damaging the original car wire, nondestructive installation.Item Type: CarAudioAmplifierMaterial: MetalPower Amplifier Type: Class ABTuning Mode: 31 segments of mobile phone tuning, 31 segments of computer adjustmentOperating Voltage: 10-16VInput Mode: Original vehicle high frequency 4 channel, Bluetooth, U disk, coaxial, fiber, AUXSpeaker Output: 4 channels x 75WOutput Impedance: 2-4RCA Output: 6 channelsDistortion: 0.01%SNR: 100DBBluetooth: 5.0Fitment: Universal .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x CarAudioAmplifier1 x USB Cable