[Smart Human Detection & Two-Way Audio] The wireless video doorbell has a built-in PIR sensor to receive real-time alerts and push notifications upon any triggered motion detection. Built-in microphone and speaker system, you can make real-time video calls with anyone in front of the camera through the app in any occasion and situation. [Audio-Visual Compatible] Full HD camera doorbell built-in microphone and speaker, noise reduction can provide call experience. Whenever a visitor presses your wireless doorbell camera or detects any motion, the wifi video doorbell send an alert to your phone, allowing you to see, hear and talk to visitors in real time. [Video Doorbell & Infrared Night Vision] Full HD 1080p 720p resolution combined with super wide-angle lens, infrared night , enables the video doorbell to clearly record the movement of the front door day and night, so that you not miss every key picture, PIR motion detection. Triple protection of the video doorbell unit, no need to worry about the video doorbell being stolen. [Multifunctional Smart Doorbell Camera] Our wireless video doorbell has upgraded PIR motion detection with smarter humanoid algorithm, 2.4GHz WiFi stable connection, clear two-way audio, HD real-time video, instant alarm, automatic switching IR night vision, completely Meet your needs and protect your privacy. [Easy Installation] Using the provided tools, you can quickly install the wireless doorbell within 3 to 5 minutes. Download the app, and the friendly app operation (user manual) guide you to quickly connect the wireless doorbell., Weight: 0.28108938405 pounds, Manufacturer: rirue