Back Up Camera Systems Wireless:? A wireless transmitter is built into the camera and a wireless receiver is built in to the monitor. The system is compatible with vehicles up to 33 ft for High-speed driving Observation use, Reversing or Slow-speed Observation can be applied up to 40 ft long vehicles. DIY Parking Grid lines:? Reverse camera can adjust the parking line’s width, moving them Left/Right/Up/Down to make them portray real conditions, or you can also turn the parking guide lines off you prefer. Connect the vehicle backup cameras to a reverse light for backing up, or a key-on or switched power source for for continuous use. Connecting the camera to reverse lights for reverse use only. The monitor can be connected to power from the cigarette lighter or fuse panel. Upgraded Monitor with Two Wireless Video Inputs. Or you can use the camera on a RV, Trailer, Camper, or Van etc. How to mount the camera? The bracket of the camera is designed ot attache to the license plate front or hide behind it on the back. You can adjust the parking lines’s. Width, moving Left/Right/Up/Down to make it fits for the real condition.