Why choose YUWEI Wireless backup cameras system: 1. Stable & reliable digital wireless backup camera signal. 2. Our Wireless Camera Transmission Distance suitable for RV, TRAILER, 5th WHEEL, MOTORHOME, BUS and so on. 3. The monitor has a built-in wireless receiver module, while the camera has a built-in wireless transmitter module. You will only need to connect two wires for camera, the system will work! 4. Monitor installation takes one minute, Installing the whole system is less than 1 hour, saving money and saving time. Enjoy the fun of DIY. 5. You will no longer worry about reversing in the next 5 years. Camera waterproof grade is IP69K, suitable for ultimate weather, no worries camera will get water inside System supports two cameras and more view mode options can be choosed, such as single camera view;two cameras to be viewed at same time as split view; autoview one by one displays Camera's view angle can be changed from menu of monitor, convenient for install camera to different position · You can DIY the guide lines on the screen, you can choose anyone according to your car. If you do not need, you can also set it on the monitor. Camera is excellent nightvision with the assistance of reversing lamp helps you to see clear obstacle in the back of vehicle when you reverse the car. Wireless transmission is 328ft at open area, suitable almost 95% vehiles those are < 50ft incar use.