Take your music library on your next boat outing. For use with MP3 devices. Play MP3 and WMA songs directly from USB drives, SD cards or your iPod® and iPhone®. The faceplate is built to last of UV-resistant resins, while each input port has a silicone plug tethered to the unit to prevent moisture and debris from getting in. All exposed metal components are coated with electrically charged paint to protect against corrosion and rust. The entire chassis is wrapped in a dirt- and moisture-resistant layer of polyethylene for additional protection. Two 6-1/2" polypropylene dual-cone speakers deliver exceptional vocal clarity. Injection-molded woofer cones for accurate bass response. Includes a remote control. Stereo maximum output power: 4x60 watts. Speakers maximum output power: 100 watts.