Feature: 1. Night Vision: 170° wide angle lens, you can see more clearly. The simple video doorbell ensures you peace of mind day and night. It is also smart enough to automatically switch between day and night modes. 2. HD Screen: This electronic peephole uses a 4.5in TFT LCD color screen high‑definition display, antitheft design. 3. Convenient Charging: Doorbell is powered by a rechargeable high capacity built in battery, enjoy ultra low power consumption through smart standby mode. 4. Doorbell Camera: Use a doorbell camera that looks like a cat's eye, one‑click view without storage. When the visitor's doorbell rings, the digital doorbell will ring and take pictures and save. You can view it later. 5. HD Video and Real Time Viewing: Let the elderly and young children of any height see what's happening at the front door without the need for the Internet or smartphone. Specification: Item Type: Video Doorbell Material: ABS + Zinc Alloy Use: Household Battery: 3.7V lithium battery 3500mah (built in) LCD: 4.5in TFT color screen Viewing Angle: 170° Lens Pixels: 2MP Screen Resolution: 845x480 Maximum Support 1920x1080P (25fps) Night Vision: Support 1-2m/3.3-6.6ft Distance Infrared Lights: 4 PIR Motion Detection: Support Do Not Disturb: Support Storage: Maximum Support 32G Storage Card (Not Included) Support Door Hole: Approx. 14-45mm/0.55-1.77in Support Door Thickness: Approx. 35-110mm/1.38-4.33in. Package List: 1 x Inside Machine1 x Outside Door Viewer1 x Fixed Plate1 x USB Cable6 x Screw 1 x Manual