Feature: 1. Visual Interaction: Enhance your home security with the feature that allows you to see, hear, and speak with whoever is outside your door once the call button is pressed. Welcome your visitors simply by pressing the Unlock button on your indoor screen. 2. 7 Inch TFT Display Screen: You can adjust the brightness, volume, and contrast effortlessly, plus choose from multiple ringtone options. Viewing your surroundings with the view from the outdoors. 3. Night Vision Camera: Equipped with a rainproof camera that has an anti damage design, this device caters to all weather conditions. Thanks to its built in infrared sensor and a 120º wide angle camera, you can clearly see your visitors even in the dark night. 4. Multi Device Connectivity: Experience the convenience of multiple to one and one to multiple connections, enabling all screens to see, hear, and interact with the outdoor doorbell while unlocking. Unlock your door with the indoor screen unlock or card sweeping. This variety of unlocking methods offers greater flexibility. 5. Easy Wall Mount Installation: With stable signal connection via wires, it comes with an adapter, rain shield, mounting bracket, 4 core cable, screws, and other accessories. This makes it suitable for installation in apartments, villines, hotels, offices, and public buildings. Specification: Item Type: 7in Video Doorbell Camera Material: ABS Camera (Outdoor): Camera: 1/4 HD CMOS Light Source: 6 Infrared Lights Resolution: 800 x 600 pixels Display (Indoor): Input Voltage: 100-240V Resolution: 800 x 480 pixels Wiring Method: 4 Wire. Package List: 2 x Indoor Units 1 x Outdoor Unit 1 x Outdoor Unit Rain Cover 6 x Connection Cables 12 x Expansion Screws 14 x Metal Screws 2 x Plugs 2 x Doorbell White Cards 3 x Key Rings 1 x Instruction Manual