The OPTIMC92 weatherproof speaker system is what you need to listen to high-quality auto on your motorcycle, ATV, or snowmobile. It comes with four 3-Inch bullet-style 50-watt weatherproof speakers and a 1400-watt amplifier for complete immersion in your music. Plug your MP3 player or iPod into the included 3.5mm jack to listen to your favorite music on this stylish system. Charge your MP3 player with the satellite USB plug (USB for charging only). Listen to your favorite radio stations with the FM radio. Easy handlebar mounting brackets and accessories are included to make installation a quick process. Now you can listen to music on the go, anywhere -thanks to Lanzar’s OPTI speakers and amplifiers.