Pyle Waterproof Bluetooth Marine Amplifier Receiver - Weatherproof 4-Channel Wireless Amp for Stereo Speaker with 1200 Watt Power, Wired RCA, AUX and MP3 Audio Input Cable - PLMRMBT7S (Silver) WATERPROOF & WEATHERPROOF: The audio amplifier is waterproof with its marine grade rating of IP-65. It has a rugged construction and integrated power wiring harness to combat weather conditions POWERFUL 1200 WATT: This amplifier receiver is powerful with its 1200 watt max. It has an anti-thump turn on and soft turn on or off to save energy. Comes with 2 to 4 Ohm speaker impedance and adjustable volume control 4 CHANNEL AMPLIFIER: Pyles PLMRMBT7B is engineered as a 4-Channel marine amplifier that powers up any boat stereo speaker and is universally compatible too. It has wired RCA, AUX and MP3 audio input BLUETOOTH 3.0 CONNECTIVITY: Built with Bluetooth 3.0 connectivity that has a wireless range of 30+ feet to stream music. Compatible with all Bluetooth devices like iPhone, Android, iPad and tablets SHORT PROTECTION: Built with a heavy duty heat-sink, thermal overload speaker short protection to protect the amp and your vehicle's electrical system from short circuit conditions. It has 12V DC and 10A fuse