Feature: 1. VISUAL INTERCOM: Welcome your visitors with one touch on the 'Unlock' button of the interior display. See, hear, and communicate with anyone outside your home for added security. 2. CLEAR MONITORING: Equipped with a 7inch TFT display, this system allows you to easily adjust brightness, volume, contrast, and choose from a range of ringtone options. 3. INFRARED NIGHT VISION CAMERA: With rain cover, and anti destruction design. Built in infrared sensor and 120° wide angle camera provide clear visibility of visitors even in pitch black darkness. 4. MULTI DEVICE INTERCONNECTION: Connects one to two devices. All monitors can see, hear, communicate with the outdoor doorbell, and unlock. Flexible unlock methods such as indoor extension unlock and card unlock. 5. EASY WALL MOUNT INSTALLATION: Stable wired connection, comes with adapter, rain cover, mounting bracket, 4 core wire, screws, suitable for apartments, villas, hotels, offices, and public buildings. Specification: Item Type: Video Intercom System Material: ABS Camera (Outdoor): Camera: 1/4 HD CMOS Light Source: 6 Infrared LEDs Resolution: 800x600 pixels Display (Indoor): Input Voltage: 100-240V Resolution: 800x480 Wiring Way: 4 wire. Package List: 2 x Indoor Unit 1 x Outdoor Unit 1 x Outdoor Unit Rain Cover 6 x Connection Cable 12 x Expansion Screws 14 x Metal Screws 2 x Plugs 2 x Doorbell White Card 3 x Keychain 1 x User Manual