2.1 Bluetooth Marine Amplifier Receiver - Waterproof 4 Channel Wireless Bridgeable Audio Amp for Stereo Speaker with 1000 Watt Power Dual MOSFET Supply, GAIN Level and LED Indicator - PLMRA430BT

4 CHANNEL BRIDGEABLE AMPLIFIER: Designed as a 4 channel bridgeable marine amplifier that energizes your speakers and is universally compatible. It includes a bridge mode selection switch and a high or low electronic crossover network. 2.1 BLUETOOTH CONNECTIVITY: Equipped with 2.1 Bluetooth connectivity providing a wireless range of over 25 feet. Works with all Bluetooth devices such as iPhone, Android, iPad, and tablets. It features a smart auto-connect function that retains device pairing information. WATERPROOF & WEATHERPROOF: This audio amplifier is waterproof, boasting a marine grade rating of IP-01. It is built with silver-plated stereo speaker output terminal connectors to withstand weather corrosion for extended use. SHORT PROTECTION: Constructed with a robust Aluminum Alloy heatsink, thermal overload speaker short protection, and an LED indicator light. These components safeguard the amplifier and your vehicle's electrical system from short circuit situations. POWERFUL 1000 WATT: This amplifier receiver delivers robust performance with 1000 WATT MAX power and a dual MOSFET power supply. It comes with dual adjustable input GAIN level controls for speaker impedance ranging from 4 to 8 Ohms