1. Front Aux in & USB port 2. ESP, Electronic Audio Control 3. SD/MMC card slot 4. MP3 playback ... card slot behind panelCD, MP3 and WMA playbackMP3 playback from front USB device and SD/MMC cardApple's iPod MP3 playback through ... line-outBacklight colour One Din driver car mp3 player, USB/SD Slot, ESP, Electronic Audio Control, Preset EQ, Full function Remote control