... (DVB-T is optional)9)2-Zone function ,the 2 program can be setting differently10)Built in GPS function(optional)11 ... reverse camera input (switch automatically) 14)Language of OSD menu with DVD:Chinese,English,French,German,Portuguese,Spanish;15)Operation menu ... , 2video input ,2 audio input 17)Subwoofer output 18)Compatible with DVD,DVD-R,DVD-RW,HDVD,DVCD,MP3,MP4,CD ...