... 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 ... screen),8.5",7",5.6",4.5". Touch buttons /splitter built inside Power supply:DC12V anti-glare Rear view safety mirror,auto switch ... Operation temperatur:0-60degree Video system:multi system last memory View angle:up up 30degree,down 30 degree,left 60 ...