Designed to withstand salt and UV exposure, the Pyle PLCDMR97 unit is capable of tuning AM/FM and playing audio and MP3 CDs. It's rated at 4 x 90 W, so each speaker has plenty of independent power. And it comes with everything you've come to expect from a modern head unit: 3-beam laser tracking, anti-skip mechanism, loudness settings and a 30-station memory. The LCD screen is backlit and shows track and ID3 tag information. A wireless remote control means you can change tracks without having to get up. Pyle head units will have your music sounding great at the dock or in the middle of the ocean.