Features: Widely used for buses, container trucks, commercial vehicles, trucks, engineering vehicles, fire engines, ships and other means of transportation. DC 12V/24V input, easy installation, widely used for various vehicles. Suitable for cold vehicle whose power supply voltage is not stable. Strong anti-interference, built in overheating over-current protection function. Reversing priority & automatic wake-up function, automatically switches to reverse picture at any state and back to the state after reversing is completed. 2 channels video input(AV1: DVD/camera video signal, AV2: the reversing signal). Can manually choose get off / reverse picture on the display screen. 7 inch vehicle display, vivid color, save reversing time, stable system and working performance. Specifications: Back View: When the system is power on , as long as the reversing switch on, it will be automaticly back in the state of AV2, without any operation. (green line for reverse line) Connection Method: Red wire is connected to the +12VDC, black wire to the +12(GND), green wire to the reversing forced wire, AV plug to camera(AV2), AV socket to DVD VIDEO(AV1) This display can be used as a desktop and support, can be installed on the headrest, can also be made into a head pillow package display, which provide customers more and better choices. Screen Size: 7 inches Pixel: 480*RGB*234=336960 pixels Standard: PAL/NTSC Power supply: DC12V (can be customized 24-33V) Power consumption: About 6W Weight: About 0.49kg Video: 2 Video inputs,can be customized audio Rear view image can be flipped up and down,right and left,all functions can be remotely operated, the machine keys can also be fully operational. Function of buttons: - "V1/V2": AV1/AV2 video quick switch, press the button to switch the cycle of AV1/AV2 video picture. - "MENU": Press the button can circularly open menu - "-": Select the down regulating parameters in the menu - "+": Select the up regulating parameters in the menu - "POWER": On / Off