DESC: The perfect soundtrack for your nautical adventures. Designed specifically for marine use with conformal coated circuit board to protect from salt and water corrosion. 52W x 4 peak power. Motion Blade retractable faceplate with red/white illumination. Plays CD-R/CD-RWs (including MP3 and ATRAC3plus files). 3-band equalizer and 7 preset tone curves. XM Satellite Radio controls. CD changer controls. Selectable rear/subwoofer preamp outputs. Low-pass filter. 18 FM/12 AM presets. Seek tuning. Package includes water-resistant cover and two 61/2" dual cone marine speakers.