Ring Video Doorbell - 1080p HD video, improved motion detection, Satin Nickel. An update from the original Ring Video Doorbell, enjoy improved motion detection, privacy zones and audio privacy, and crisper night vision. Receive mobile notifications when anyone presses your doorbell or triggers your built-in motion sensors. Powered by the built-in rechargeable battery or connects to existing doorbell wires for constant power. Easily setup by connecting your Ring Video Doorbell to wifi through the Ring app and mounting with the included tools.Pair with select Alexa-enabled devices to enable announcements and two-way talk for convenient in-home monitoring.