Nicely styled combination unit mounts between the license plate bolts for a stealth appearance. Features a Color Camera with Night Vision 1/4 " CCD for a clear rear-view image. The camera requires a mere. 01 LUX light to pick up an image. 8 IR LED"s provide light for night vision. Use the on-screen distance gauge to determine how close the vehicle is to obstructions. Back-up Sensors have 2 proximity sensors that continuously monitor the distance to potential obstructions. A small hide-a-way speaker gives audible distance alerts and tones. These sensors can detect obstructions as far away as 7 feet, and up to only a couple of inches. Cast Alloy Frame is made of a durable zinc alloy, using stainless steel parts when necessary. All components are waterproof, so don"t sweat weather exposure or even sea water when launching a boat. Chrome finish. U.S. Patent #7,106,183 B2