The Powerbass Extreme XL-52SS is a pair of 5.25" coaxial powersports/marine speakers designed for outdoor activities, off-road vehicles, and watercraft. With an audio output mode of surround sound and a 3.0 surround sound channel configuration, these speakers deliver high-quality audio. The speakers have a subwoofer diameter of 5.25 inches and a speaker maximum output power of 100 watts, making them perfect for a variety of vehicles including golf carts, UTVs, and boats. Additionally, they are waterproof, lightweight at 4.23 pounds, and come in a sleek black color.