Item Type: Wired Video Intercom System Material: ABS Weight: Approx. 960g / 33.9oz Camera (Outdoor): Camera: 1/4 HD CMOS Light Source: 6 Infrared Lights Resolution: 800 x 600 pixels Monitor (Indoor): Resolution: 800 x 480 Wiring Method: 4 Wire Package List 1 x Indoor Monitor 1 x Outdoor Camera 1 x Rainproof Cover for Outdoor Camera (Already Installed) 3 x Connection Cable 8 x Expansion Screw 9 x Metal Screw 1 x Plug 5 x Unlocking Card 1Visual Intercom: Make your home safer. When someone presses the call button, you can see, hear, and communicate with anyone outside your home. Simply press the unlock button on the indoor monitor to welcome your visitors. 27 Inch TFT Display: Easily adjust brightness, volume, contrast, and choose from various ringtone options to monitor the external view. 3Infrared Night Vision Camera: The camera comes with a rainproof cover and anti vandalism design. With built in infrared sensors and a 120 degree wide angle camera, you can see visitors clearly even in pitch darkness. 4Multiple Device Interconnectivity: Achieve multi to one and one to multi connections, allowing all monitors to see, hear, talk to the outdoor doorbell, and unlock. 5Easy Wall Mount Installation: Wired connection for stable signals. Comes with adapter, rainproof cover, installation bracket, 4 core wire, screws, and other accessories. Suitable for apartments, villas, hotels, offices, and public buildings.