Features LANGUAGE AND MEMORY SUPPORT: The peep door viewer support English and Chinese. (distributed network prompt voice), for the language in the mobile App, the language selection will be displayed after downloading the App. PIR DETECTION AND HD RECORDING: This smart door peephscope feature a 1080P camera, wide angle lens D=166.9°, H=137.4°, automatic switching of day or night viewing sensitivity(adjustable distance of about 2meters), and TFT color LCD display for AHD images. SMART DIGITAL PEEPING HOLE VIEWER: The peeping hole doorbell camera can be wirelessly connected to a WiFi router. You can monitor handheld devices including smartphones, for Android tablets, and voice or two way intercom with noise cancellation. SUPPORT MOBILE PHONE AND USER SHARING: For smart door peeping hole Settings, please hold down the reset button for a few seconds, and then recognize the QR code on the phone app against the doorbell, and then follow the voice prompt to the next step. WIDE APPLICATION: The system function menu is located in the mobile APP console, rather than the indoor display screen, WIFI door viewer is widely used in homes, apartments, villas, hotels or offices. Feature: 1. EASY TO INSTALL WITH LONG STANDBY TIME: The door peephole camera support 30 days standby time (usually 3‑5 calls per day); With 5000mAh large capacity battery; Low battery reminder and USB port for easier charging Specification: Item Type: Door Peephole Camera Material: ABS Main Control Chip: For Ingenic T31 Control System: For LiteOS Viewing Angle: D=166.9°, H=137.4° Camera Pixel: 1080P Performance Display: 4.3 inches, 480x272 Battery Capacity: 5000mAh lithium ion battery Two Way Audio: Supported Motion Detection: Supported Infrared LED Wavelength: 850nm Battery Charger: 5V 2A Door Peephole Diameter: Approx. 14 ~ 28mm / 0.55 ~ 1.1in Door Thickness: Approx. 35 ~ 120mm / 1.38 ~ 4.72in External Storage: Small memory card(maximum 128G)(not included) WIFI: ieee802.11b/g/n 2.4GHZ Color: Silver Package List: 1 x Display Screen 1 x Peephole 4 x Screw 1 x USB Cable 1 x User Manual Package List 1 x Display Screen 1 x Peephole 4 x Screw 1 x USB Cable 1 x User Manual