1:car dvd player,7inch double din car dvd with detachable front panel 2:with dvd+BT+FM/AM+RDS+TV ... +IPOD+DVB-T/ISDB-T optional car dvd player,7inch car dvd player with detachable front panel*M- ... display: Car reverse camera input (switch automatically)14)Language of OSD menu with DVD:Chinese,English,French ... ,2 audio input17)Subwoofer output18)Compatible with DVD,DVD-R,DVD-RW,HDVD,DVCD,MP3,MP4,CD-R,CD ...