-Mini HIFI digital bluetooth audio power amplifier. -TF Card, AUX, U disk, MP3 format play, support bluetooth wireless connection. -Supports FM stereo radio. -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 foe home or your car. -Upgraded high power 90W + 90W -It can switch voltage automatically -Small heat, light weight