Boss Audio Systems MC300 is a weatherproof, high-power speaker and amplifier system designed for motorcycles and UTVs. It features two weatherproof speakers with built-in amplifiers, delivering a total of 400 watts of power. The speakers are made from high-impact, Hi-Temp ABS exterior and have stainless steel brackets for durability. The system also includes four speaker grills, mounting hardware, and a wired remote volume control.

The MC300 is easy to install, with the speakers mounting to the included brackets, which are then secured to the chosen mounting bars. The wiring is straightforward, with the 12V red wire connecting to a switched power source and the 3.5mm stereo plug connecting to the audio source.