Boss Audio Systems MC520B is a 3" (76mm) All-Terrain Speaker and Amplifier System with Bluetooth® connectivity, perfect for motorcycles and UTVs. It features weatherproof speakers, an FM tuner, USB/SD auto-turn on and auto-play function, 3.5 mm AUX input, and a remote control for convenient operation. With a maximum power of 600W, it delivers crystal-clear audio, making it ideal for outdoor adventures and off-road enthusiasts. Additionally, its compact size and easy mounting options allow for seamless integration into any vehicle setup.