Feature:1. 1. [Network connection]: WIFI connection, without wires, the doorbell and mobile phone two-way intercom can be realized for the first time. Real-time mobile phone, supports two-way calling, taking pictures, recording, caring for your family, and making you safer.2. 2. [HD Video]: The smart video doorbell can see, hear and talk to anyone at the door through your phone, or tablet. 65 viewing angle high-definition clear video, the details are in front of the door, reliable and practical. It can be directly connected to the phone.3. 3. [Infrared Night Vision]: Watch your home day or night with infrared night vision in a clear 720p HD video doorbell camera.4. 4. [Low-power charging]: Powered by three AA dry batteries (excluding batteries), combined with a low-power design, the battery life is greatly improved, and farewell to frequent battery replacements (note: batteries are not included).5. 5. [Motion Sensing]: When the visitor presses the doorbell or the built-in motion sensor, it is instantly reminded, and you can watch the real-time video on your smartphone. We provide 2 indoor ding dong bells.Specification:Material: ABSSize: Doorbell Camera-4.6x7.3x2.5cm Indoor Ding-dong Bell-4.3x3.2x4.1cmBattery: 3xAA (not included)Camera: 720p infrared night visionSupport wifi: 2.4GInstallation method: 2 ways, direct paste without punching installation or use expansion screw accessory kit to install.Package List:1xDoor Bell Camera2xIndoor Bell1xInstallation Parts Kit1xUser GuideNote:Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.