17inch LCD digital screen, waterproof camera, suitable for outdoor use. 24CH digital wireless camera, total digital wireless, no interference. 3Memory card recording, maximum support 32G card (this set contains 8G memory card). 4There is no need for wiring between the display and the camera. The 2.4Ghz frequency transmission screen is easy to install. 5Support single and 2way simultaneous display and video/photo.