Fookoo Ⅱ 10'' 1080P Wired Backup Camera System Kit,10'' HD Quad Split Screen Monitor with Recording IP69 Waterproof Rear View Side View Camera Parking Lines for Truck/Semi-Trailer/Box Truck/RV(DY104)

You can choose to view 3 cameras images at the same time, or choose view 2/3 cameras at the same time, by pressing "CH-" button.Alternatively, you also can see one camera for full screen separately. When you want to see other cameras, just press the "CH-" button.Reversing screen with parking line will make your parking safer and faster. No longer need someone to get off the bus to help you see whats going on and guide you.All you need to do is: using our system and connect the green wire to the back light.If you dont need it, you can turn off it via menu setting.You can flip the screen via Menu.You also can choose to turn on / off the mirror function of the camera as needed.For example, if you want to install one camera in the front of the vehicle. Now you can just flip one camera to get the correct image without affecting the image of the other cameras.