1、VIDEO INTERCOM: You can see, hear and communicate with anyone outside your home when someone presses the call button. Simply press the "unlock" button on your indoor display to welcome your visitors, making your home safer. 2、DISPLAY: Comes with a 7 inch TFT color display that allows for easy adjustment of brightness, volume, contrast and multiple ringtone options, helping you to see the external view. 3、IR NIGHT VISION CAMERA: The camera comes with a rain cover to effectively protect against rain and vandalism. Built in infrared sensor and 120º wide angle camera, you can see visitors clearly even in dark night. 4、WIDELY APPLIED: It adopts wired connection with stable signal, equipped with adapter, rain cover, mounting bracket, 4 core wire, screws and other accessories, which can be used in apartments, villas, hotels, offices and public buildings. 5、ONE TO ONE, MULTIPLE UNLOCKING METHODS: This video doorbell adopts one to one connection and has multiple unlocking methods, such as card unlocking, key unlocking, which makes it more flexible to use. Item Type: Video Intercom System Material: ABS Camera (Outdoor): Camera: 1/4 HD CMOS Light Source: 6 Infrared Lamps Resolution: 800x600 Pixels Screen (Indoor): Resolution: 800x480 Wiring: 4 Wire 1 x Doorbell 1 x Screen 1 x Doorbell Backplate 1 x Mounting Iron Piece 4 x Connection Cable 8 x Expansion Screw 9 x Metal Screw 1 x Plug 2 x Doorbell White Card 3 x Key Ring 1 x Instruction Manual