MP3/WMA/AAC/CD Playback Auto-Slide Detachable Faceplate 14-Segment FL Display (8-Digit, Scroll On/Off Selectable) Rotary Encoder & Jog Control Knob for Easy Operation CD-R/CD-RW Compatible CD Text with Disc Naming System Q Equalizer with User Memory System E Advanced Crossover System Dual Zone Source & Volume Control Source Tone Memory Installer/Backup Memory of Audio Setup 24 Presets Station Naming Sirius Satellite Radio Ready HD Radio Ready AUX Input Wireless Remote Control External Media Control? IPod Ready (iPod Interface KCA-iP500 sold separately) CD Changer & Music Keg Control