Feature:1. Intelligent Digital Peephole Viewer: Can connect wirelessly to your WiFi router and is controlled through a smartphone app, supports noise reduction, two way intercom, and video calls.2. PIR Detection: 1080P camera with a 120 degree wide angle, supports night vision, PIR motion sensor triggers push messages and videos within seconds when human movement is detected.3. Storage Card Support: This peephole viewer supports English and Chinese language, supports micro storage cards up to 128GB (not included) and allows for optimal image capture, video recording and playback.4. User Sharing Support: You can set up the peephole viewer by holding down the reset button for a few seconds and scanning a QR code, following vocal prompts to proceed to the next steps.5. Long Standby Time: The peephole camera supports 30 days of standby time (usually 35 calls per day), a built in 5000mAh battery, low power reminder and USB port for convenient charging.Specification:Item Type: Digital Peephole ViewerMaterial: ABSViewing Angle: 120 DegreeSensor: 1080PDisplay: 4.3in IPS LCD screenAPP: Support for Android, for iOSBattery: 5000mAh Lithium Battery (built in)Infrared Night Vision: SupportAutomatic Photograph: SupportMotion Detection: SupportTwo Way Intercom: SupportMaximum Memory Support: 128GB (Memory Card Not Included)Applicable Door Thickness: 35-120mm/1.38-4.72inLanguage: English, ChineseCompatible Door Aperture Diameter: 14-30mm/0.55-1.18inOperating Temperature: -20--55.Package List:1 x Indoor Unit1 x Outdoor Unit1 x Mounting Bracket 8 x Mounting Screw2 x Spacer1 x USB Charging Cable 2 x English Manual