Rear-view cameras are becoming increasingly common in cars as they provide drivers with a wider field of view when reversing. This can help to prevent accidents by making it easier for drivers to see pedestrians and other obstacles behind their vehicles.
The camera is usually mounted on the back of the car, near the license plate. It is connected to the car stereo via a video cable. The car stereo then displays the camera's feed on its screen.
Some car stereos also have the ability to record video from the rear-view camera. This can be useful for providing evidence in the event of an accident.