SODIAL(R) Mini Car Motorcycle Hi-Fi Stereo Audio Amplifier w/ Super Bass Out / Lightweight and Matt Aluminum Casing with Overheating, Overload and Short Circuit Protection-Perfect for Handling Your Audio Demands in Style Power and super bass ON/OFF switch, treble / bass / volume knobs and 3 LED indicators on front panel L / R RCA and Mp3 input port, 4 spring terminals and DC jack for back panel Lightweight and matt aluminum casing Overload, overheating and short circuit protection Compact and efficient, perfect for handling your audio demands in style