YI 4pc Security Home Camera, 1080p 2.4G WiFi Smart Indoor Nanny IP Cam with Night Vision, 2-Way Audio, AI Human Detection, Phone App, Pet Cat Dog Cam - Works with Alexa and Google24 7 Full HD Recording F 2. 0 aperture, 112 wide angle lens, 1080p 15fps to capture moments with clear picture. Features two way audio to allow you to receive and transmit audio from any location with a WiFi connection. Enhanced Night Vision 8 individual 940nm infrared LED's, which automatically turns on infrared (IR) in low light conditions, allowing you to see clearly in the dark. (power source required) Optional 24 7 Emergency Response Service YIs