This wireless video transmitter is used in the car's rear-view camera to transmit in a range of up to 10 meters. The product allows users to transform their wired rear-view vehicle cameras into wireless rear-view cameras. This unit is simple to connect - the rear-view camera should be attached to the transmitter and the LCD to the receiver for it to work. It is ideal for people who already have a wired rear-view camera or for those intending to buy one.