Clarion has created a new meaning for the term "Rockin the Boat" with the CMD4 Marine AM/FM/CD Player. This seaworthy radio features 17 watts per channel x 4 channels and three sets of preamp outputs. The watertight faceplate and clear-coated circuit board are designed to give you years of corrosion-free operation. The CMD4 is loaded with entertainment features that are ready to provide the perfect soundtrack to your travels, no matter how far you like to roam. The CMD4 can plays back CD audio, CD-R and CD-RW discs and features a powerful AM/FM tuner for clear radio reception. Connect to a SIRIUS satellite radio tuner for even more entertainment, with clear reception up to 200 miles off shore. Features: CD receiver with built-in amplifier (17 watts RMS/53 peak x 4 channels) Watertight, flip-down faceplate with drip shield and UV-resistant controls Pelgan Z clear-coated circuit board for marine use Plays CDs, CD-Rs, and CD-RWs Adjustable bass and treble controls (2-band parametric EQ) Adjustable display contrast 18 FM/6 AM presets Seek tuning Rotary volume control CeNET connection for a Clarion 6-disc CD changer or SIRIUS satellite radio tuner Auxiliary input Three sets of preamp outputs iPod control with the optional EA1251B interface Clock