INCLUDES CAPTURE AND FREE ALERT - As soon as someone rings your doorbell camera, the doorbell camera will record and instantly send a notification to your phone. The doorbell camera is equipped with an indoor chime, whether you are inside or outside the house, it can let you know the record of the visitor, so as not to miss any moment. AUDIO & MULTI-USER SHARING - With an upgraded microphone and speaker with built-in anti-noise filter, our wireless doorbell allows you to have clear real-time two-way communication with your visitors from your smartphone anytime, anywhere. Our doorbell supports 1 master account and 8 shared users, making it easier for multiple family members to know who is visiting your home. WIDE VIEWING VIEW AND NIGHT VISION - This video doorbell has a 110 viewing angle lens, which provides a wide security viewing angle compared to other doorbells. Advanced night vision function, built-in 2pcs 850nm infrared lights, will automatically switch according to the surrounding brightness, allowing you to see every visitor clearly even at night. APP Instant Notification When a visitor rings the doorbell, you will receive a "Device Call" push notification on your mobile phone, and you can answer and enter the video call. You won't miss any friends' visits and package deliveries. No Wires & App Remote Operation - Our doorbell camera with chime supports 2.4G WiFi to cover more areas of your home (5GHz WiFi is not supported). 100% wireless and easy to install anywhere you like. Aiwit is available in the app store and is compatible with iOS and Android. Online customer service for any of your questions through the Aiwit app. Specification: color: White Material: galvanized steel Type: Smart WiFi Doorbell - Two Way Talk - Night Vision - Doorbell - Video Sensor: 30W GC0328 CMOS sensor Lens: 110 wide-angle lens Signal-to-noise ratio: 41dB Night vision: two 850nm28mil high-power infrared lights; Battery Type/Capacity: Polymer 803035/800MAH Battery discharge time: polymer battery standby for 1 year