# marine digital media receiver with built-in amplifier (18 watts RMS/50 peak x 4 channels)# no internal CD player - plays MP3, WMA, and AAC music files from your iPod and other external sources# specially sealed against the elements for use in the marine environment# 2.2" full-color TFT display# detachable face# iPod tagging with Alpine"s optional TUA-T550 HD RadioTM tuner# optional remote control#Audio features:# 2-band parametric equalizer# compatible with the optional PXA-H100 IMPRINT audio processor#Expandability:# iPod control: direct connection to USB input for newest generation iPods, "Full Speed" iPod connection for all other dockable iPods (requires Alpine"s KCE-422i interface cable)# compatible with Alpine"s HD Radio tuner, Bluetooth adapter, CD changer, satellite radio# inputs: USB input# outputs: 6-channel preamp outputs (front, rear, subwoofer)