Features: Mini HIFI digital bt audio power amplifier. Built-in LCD display, with backlight function. Memory Card, U disk, MP3 format play, support bt wireless connection. Supports FM stereo radio. Two microphone input slot, karaoke system in your home or in car. With treble, bass, and volume control, very easy to use. Low distortion supplies a clearer, stronger and more powerful sound. Two main channel output. With remote control function. DC/AC power in, suitable for both home and your car.