Nest Cam has built-in intelligence and can tell the difference between a person, animal, and vehicle and send alerts directly through the Google Home app[1], no subscription required.Controller Type:Google Assistant.Connectivity protocol:Bluetooth;Wi-Fi.Power source type:Corded Electric Easily check in from anywhere 24/7 with 1080p HDR video[1] with night vision, and see what you missed with 3 hours of free event video history[2]; add a Nest Aware subscription (sold separately) for up to 60 days of video history. If your Wi-Fi goes down, Nest Cam will store up to 1 hour of recorded events so you can see what you missed. Take action in an instant if something happens; talk and listen with the built in speaker and mic on your security camera or call your local emergency service directly from the Google Home app (Nest Aware subscription required. Set up Activity Zones to receive phone notifications about specific areas of your home and know when familiar faces arrive (Nest Aware subscription required for familiar face alerts. Stream your live video feed hands-free on compatible smart displays with Google Assistant, and compatible smart displays, smart TVs, and tablets with Amazon Alexa. Nest Cam requires the Google Home app and a free Google Account - it’s not compatible with the Nest app or the Nest site. Nest Cam is designed to fit any home’s style; it comes in a range of colors and the built-in stand lets you place it on a wall or table.