Compatible with: Default Material type: ABS + zinc alloy Number of items: 1 Power source: Battery, USB Included components: Door viewer, indoor display unit Batteries included?: No Package Dimensions: 19 x 12 x 4 cm; 209 grams Function: 1. 2.4 inch screen: Ultra-bright 2.4 inch TFT LCD display for clear and smooth image viewing. 2. HD Camera: 0.3MP HD camera captures high-definition images and records visitor information clearly. 3. 145° Wide Angle Lens: Provides a wide field of view for enhanced security, enabling 24-hour monitoring in all weather conditions. 4. Installation Position: Installs directly into the door’s peephole position, replacing the traditional optical peephole. 5. Clear Screen Display: Shows a clear image of the area outside the door on the indoor screen, allowing users to view and manually capture images of visitors. Usage: 1. Requires 3 AAA batteries (not included). Insert batteries and connect the door viewer to the indoor unit. 2. Press the power button to turn on the device. The screen will illuminate and display the live video feed. 3. When the doorbell button is pressed, the camera automatically activates and the indoor unit sounds an alert. Specifications: Item Type: Video Doorbell Material: ABS + Zinc Alloy Intended Use: Household Color: Gold Power Options: 3 x AAA batteries (not included), USB power supply (DC 5V) Screen: 2.4 inch ultra-bright TFT LCD display Camera: 0.3MP HD camera with wide-angle lens Viewing Angle: 145° Indoor Unit Display: Clear real-time video output Installation: Replaces standard door peephole, no wiring required