10.2'' rear view monitor with touch buttons, 4 video inputs 10.2" rear view mirror monitor three potos at one time optionalDisplay mode: left 4.5", 5.6" , 7", 8.5",25:10(full screen),right 25:10(full screen),8.5",7",5.6",4.5". Touch buttons /splitter built inside Power supply:DC12V anti-glare Rear view safety mirror,auto switch to V2 when reversing split 2 image display or 3 image display ...