Feature:1. Automatical Storage: Support visitor's audio recording to automatically take pictures and automatically store, when peephole viewer records the visitor's portrait, it will store and support visitor's video message.2. Infrared Night Vision: Using high power infrared fill light, even in the dark, the face of visitors are still clearly visible, ensuring home safety.3. Real Time Viewing: Elderly people and young children of any height can see what's happening at the front door without the need for the Internet or smartphone.4. 3.5in Screen: The display uses a 3.5in high definition display, the door viewer is made of high quality zinc alloy, and the anti theft design is very convenient and practical.5. Rechargeable Battery: The display is powered by a rechargeable high capacity built in battery, easy to charge. Enjoy ultra low power consumption through smart standby mode.6. Doorbell Camera: Using the doorbell camera to view with one key to protect privacy. When the doorbell rings, the digital door viewer will ring and take a photo and store it, you can view it later.Specification:Item Type: Door Digital ViewerMaterial: ABS+Zinc AlloyBattery: 3.7V rechargeable lithium battery 3800mah (built in)Screen: 3.5inCamera Pixel: 200WPicture and Video Specifications: 720P, 1080PPIR Motion Detection: SupportSuitable for Door Hole Diameter: Approx. 16-40mm/0.63-1.57inSuitable for Door Thickness: Approx. 35-105mm/1.38-4.13inInfrared Night Vision: 2 Infrared Lights, Support Night VisionUSB Charging: 5VStorage: Support 16-32G Memory card (not included)Languages: Chinese, English, Japanese, Korean, French, Italian, Russian, Italian, German, Arabic, Turkish.Package List:1 x Door Digital Viewer1 x Display6 x Screw1 x Fixed Plate1 x USB Cable1 x Manual