Appropriate 5 inch Screen Size,perfect fit for most of people’s requirement, it is not bigger than 7” montior,and it is also not smaller than 3.5” monitor | 2 Way AV input, Yellow connector:AV1 input,White connector: AV2 input,Support AV2 reversing priority,automatically display rear view image when you reversing,more convenient than manual switch | 2 Optional Bracket for installation, it could stand steady on the dash, it also could be hold on windshield by the suction cup bracket | Wide Compatiblity,12V-24V Wide voltage, Work well with your existing OEM or aftermarket front side rear view camera with standard RCA input,used for 12V/24V vehicles like Car,SUV,Truck or Van | Display black screen when has no video signal input to prevent distracting driver when driving. Note:please confirm you get power and video signal to the monitor successfully if it don’t turn on