1、7‑inch LCD digital screen, waterproof camera, suitable for outdoor use. 2、4CH digital wireless camera, total digital wireless, no interference. 3、SD card recording, maximum support 32G card (this set contains 8G Memory card). 4、There is no need for wiring between the display and the camera. The 2.4Ghz frequency wifi transmission screen is easy to install. 5、Support single and 4‑way simultaneous display and video/photo. Features: 7-inch LCD digital screen, waterproof camera, suitable for outdoor use. 4CH digital wireless camera, total digital wireless, no interference. SD card recording, maximum support 32G card (this set contains 8G Memory card). There is no need for wiring between the display and the camera. The 2.4Ghz frequency wifi transmission screen is easy to install. Support single and 4-way simultaneous display and video/photo. Multiple recording modes, you can take photos manually, also automatically record or photographt when there are moving objects. If there is a wall in the middle, the monitor's monitoring range is about 30-100m. Applications: Warehouses, shopping malls, home security, child care and the elderly. Display Screen Specification: Model: 602D13 LED Size: 7 inches LED resolution: 800*480 Image resolution: 640*480 Receiver battery: standard Main features: monitoring, video, motion detection Extended memory: Maximum support for 32G Memory card (the set includes 8G Memory card) Recording format: ASF (can be played directly, the computer needs to install the corresponding software to play) Single screen status: 640*480 @25FPS Four-picture status: 320*240 @25FPS Photo format: 640*480 JPG Power output: 5V/1A Working current: ≤400MA Working frequency: 2.4GISM digital public frequency band Camera Specification: Lens: 3.6mm Resolution: 800,000 pixels Viewing angle: 92 degrees Night vision distance: 2-4 meters Main function: infrared night vision monitoring Working frequency: 2.4G ISM digital public frequency band Working current: daytime: 250mA; nighttime: 450mA MAX Power output: 5V/1A Receiver Size: Approx. 200*117*20mm / 7.9 x 4.6 x 0.8inch Weight: Approx. 1580g Package List: 3 * Infrared Camera 1 * Displayer 4 * Power Supply 4 * Antenna 3 * Screw Packs 1 * USB Cable 1 * 8G Memory Card