This is a commercial grade TWO Digital Wireless cameras and 7 inch monitor set. Digital Wireless Signal - 0% Interference, 0% statics, 100% crystal clear picture guaranty, or 110% your money back guaranty. Wireless digital signal will not have interference and statics problem. Unit provides wireless digital video signal, and allow to record camera video and picture. The Monitor: This 7" TFT LCD Widescreen with built-in DIGITAL wireless receiver, just plug into cigarette lighter plug, no additional wiring, no additional wireless receiver hanging on your dashboard. It is a Quad-view monitor, select from one full camera view, multiple camera view or 4 cameras view. The 1" thin LCD sits on the fully adjustable base allowing you to aim the screen in almost any direction. A removable external antenna for the monitor allows for better reception for long range signals. Allow image rotation and mirror, non-mirror setting. Full RCA A/V output allows you to output image to bigger screen. Also comes with SD Card slot for camera video and Audio recording. The Camera: This heavy-duty metal framed CCD wireless water-proof camera comes with a 11 high-powered IR LEDs for 20 feet night vision in total darkness. Camera uses SONY 1/4" high-resolution CCD, with removable external antenna for longer range signal transmission, estimated unobstructed range of 300 feet. By adding the optional super-charged extended antenna ($25), this set can be used in almost any situation. Aluminum alloy metal case with 6.8G-force rated shock resistant, IP66 waterproof of resistance grade, and heavy-duty adjustable steel mounting bracket.