Kinter 500W Car Motorcycle 2 Channels Audio AMP Amplifier Support USB MP3 FM Input Versatile 2 channels stereo 500W MA-700 mini-amplifier is designed for car, motorcycle, boat, etc. The small size allows it to be very portable and to be installed anywhere, even in very small spaces. 2 channels mini amplifier, 1 main channels and 1 surround channel output. This item supports MP3 music format, U disk and FM stereo radio. Filtering and anti-capacity power circuit. Integrated circuits, minimal distortion and strong power. Ideal for your car, motorcycle, boat, etc. Compact and efficient, perfect for handling your audio demands in style.