Features. Widely used in buses, container trucks, commercial vehicles, trucks, engineering trucks, fire trucks, ships and other vehicles. 1,System DC12/24V input, more convenient installation, widely used in various vehicles. It is suitable for cold vehicles with unstable power supply voltage, strong anti-interference, and built-in overheating and over-current protection function. 2,Reverse priority function, automatically switch the reversing screen when reversing in any state, and restore the original state after reversing, and realize the reversing automatic function; 3, can be connected to two video input (AV1: can be connected to a DVD / camera audio and video signal, AV2: support a reversing signal) 4,Manually select the /reverse screen on the monitor. 7 inch car monitor, with realistic color, fast reversing time, stable system, etc. Parameters. Color: black Material: metal Screen size: 7 inch Resolution: 800 x 480RBG/1024 x 600 Format: PAL/NTSC Power supply: DC12V Power consumption: about 7W Video: 2-way video input (can be customized audio.) Rear view image screen can be up / down / left / right mirror flip All functions can be remotely operated, the machine can also be fully operated by the button Function Key function description: V1/V2 key: AV1/AV2 video quick switch between, press this key can cycle switch AV1/AV2 video screen; 2). "-" minus key: can be in the MENU menu, down to select the adjustment parameters 3). MENU key: this keyboard can cycle to open the adjustment menu 4). "+" plus key: you can select the adjustment parameters upwards in the MENU menu 5).POWER key: switch on/off key Package Contents: 1 x 7-inch desktop monitor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.