The Nest Doorbell is the battery-powered video doorbell that works with any home. See what's happening at your door from anywhere, and get alerts about important activity, like a visitor or package delivery.1 And because it's wireless, you can install it yourself. View live HD video, replay video recordings, talk to visitors, and more - all from the Google Home app. The Nest Doorbell (battery) requires a free Google Account and is not compatible with the Nest app or the home.nest.com site.