Pyle Marine 4Ch Mp3/Ipod Marine Power Amp 4x100W RMS Silver. It includes a marine-ready power amplifier a waterproof poly bag and a waterproof stereo 3.5 mm-to-RCA adapter for plugging in virtually any audio source including your iPod or other MP3 player. The amp is equipped with high and low level inputs an electronic crossover network plus power protection circuitry and anti-thump turn-on to keep your equipment secure. The included wired volume control easily mounts to your vehicle's dashboard and provides an easy way to control your music while at the helm of your vessel. Package Contents: Pyle Marine 4Ch Mp3/Ipod Marine Power Amp 4x100W RMS Pyle PLMRMP3A: Marine 4Ch Mp3/Ipod Marine Power Amp 4x100W RMS Silver