Have a long truck, RV or trailer, and wondering whether the wireless backup set would work in your case, this wireless backup camera is your answer. Not like the license plate camera which has the transmitter built-inside the camera, this wireless camera set comes with a transmitter which detached from the camera. You can fix the camera in the location you want, and move the transmitter to a location which is closer, and less obstructed object to the monitor. So the monitor will have better reception. You can easily adjust the transmitter location without restriction of the camera location.