The Pyle PLMRA120 Hydra Series Waterproof 240-Watt 2-Channel Marine Class AB Amp is a high-quality amplifier designed specifically for marine use. With its waterproof feature, this amp is protected from the elements and can be installed on boats, pontoons, or other watercraft safely. The Pyle brand is known for its reliable and durable audio equipment, making this amplifier a great choice for marine audio systems. With 240 watts of power and 2 channels, this amp provides clear and powerful sound for a truly immersive listening experience on the water. Never used.