Features 1、Wireless Connection: This smart visual doorbell supports WiFi router wireless connection, making it easy to view visitors, video calls, take photos, and record on your phone. The system function menu is located on the mobile APP console, not on the indoor display screen. 2、Camera Specifications: The wireless viewer doorbell adopts an excellent camera (D=166.9°, H=137.4°), with 1080P lens resolution, 120 degree wide angle, and automatic switching day and night vision sensitivity (about 2 meters away). 3、Screen and PIR Sensor: The camera doorbell adopts a 4.3 inch IPS LCD screen, suitable for AHD image and video. Supports motion detection, PIR motion sensor automatically detect human motion, quickly push messages and videos, stored on memory cards. 4、Language and Storage: This WiFi viewer doorbell supports English and Chinese. Distributed network prompt voice, you can set it according to your needs. Supports up to 128GB of memory card (not included), supports taking photos, recording, and video playback. 5、Sharing Function: This smart doorbell supports sharing between the phone and the user. Press and hold the reset button for a few seconds, then recognize the doorbell with the QR code on the mobile APP, and follow the voice prompts to proceed to the next step. 6、Long Standby Time: The smart camera doorbell supports a 30 day standby time (usually 3‑5 calls per day), with low battery reminder. Built in 5000mAh high capacity lithium battery, USB port ensures fast and convenient charging. Specification Item Type: Smart Visual Doorbell Material: ABS Operating System: For LiteOS Lens Resolution: 1080P Screen: 4.3 inch IPS LCD Screen Support System: For Android, for iOS Support APP: For Tuya Battery: 5000mAh Lithium Battery (Built in) Wide Angle: 120 Degree Functions: Infrared Night Vision, Automatic Photo Taking, Monitoring Intercom, Motion Detection External Storage: Supports up to 128G Memory Card (not included) Support Door Thickness: Approx. 35-120mm / 1.4-4.7in Language: English, Chinese Suitable Hole Diameter: Approx. 14-30mm / 0.55-1.18in Operating Environment Temperature: -20-55℃ Package List 1 x Monitor 1 x Peephole 1 x Mounting Bracket 8 x Mounting Screws 2 x Washers 1 x Power Cord 2 x User Manual