Double-Din Size Faceplate (Supplied with Universal Frame) CD player with built-in MOSFET amplifier (22 watts RMS/50 peak x 4 channels) CD, CD-R, and CD-RW compatible (including discs loaded with MP3 and WMA music files) AAC music file playback (not compatible with songs downloaded from the iTunes Music Store) USB input AC Drive (PhatNoise Media Manager software included) - announces artist, album, and genre names System Q Sound Control (6 EQ curves) 3-band equalizer 24-bit digital-to-analog converter System E\'\'s+ high- and low-pass filters Two sets of preamp outputs Satellite radio-ready (XM or SIRIUS tuner, service subscription, and antenna required) HD Radio-ready (separate tuner required) CD changer controls Controls for Kenwood\'\'s optional iPod adapter Auxiliary input (adapter required for optional second Aux-In) Wireless remote 18 FM/6 AM presets Clock Dual zone control CD frequency response:10-20,000 Hz CD signal-to-noise ratio:105 dB FM sensitivity:9.3 dBf