General description The Digital Door Viewer Two Way Talk 1080P HD Wireless Video Peephole Doorbell Camera features a 4.3-inch display, providing enhanced home security. This device allows for two-way communication with visitors through a smartphone or tablet, ensuring convenience and safety. Technical specifications Camera Resolution: 1080P Screen Size: 4.3 Inch IPS LCD Battery Capacity: 5000mAh Li Battery Operating System: LiteOS Wide Angle: 150 Degrees Infrared Night Vision: Automatic Photography Applicable Environment Temperature: -20℃ to 55℃ Support for Memory Card: Maximum 128G (not included) Support Door Thickness: Approx. 35 - 120mm / 1.4 - 4.7in Suitable for Door Hole Diameter: Approx. 14 - 50mm / 0.6 - 2in Compatibility and accessories Compatible with Android and iOS devices Includes: 1 x Indoor Display, 1 x Outdoor Camera, 1 x USB Charging Cable, 1 x Metal Bracket, 8 x Screw Rod, 2 x Gasket, 2 x Manual Installation Installation involves mounting the outdoor camera and indoor