HIFI Digital Amplifier for Karaoke Home/Car COAX/OPT Power Amp w/MIC USB Player

M7 with multiple audio inputs: mini digital amplifier, with 6 kinds of audio inputs (Bluetooth / USB / stereo RCA / coaxial / optical / microphone) and banana speaker output, compatible with most home audio devices such as phone, tablet, computer, TV, set-box, CD player etc.. Dual microphone inputs for Karaoke everywhere: dual moving coil mic interfaces, with built-in DSP, great howling detection and suppression function, also support echo and vocal elimination, the best choice for you to build high-quality KTV room at home or in the car.