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. The Nest Doorbell (battery) requires a free Google Account and is not compatible with the Nest app or the home.nest.com site. Wasserstein Horizontal Angle mount improves the viewing angle of your doorbell for the ideal vantage point.