The battery-powered video doorbell with smarts to detect important activity.The Nest Doorbell is the battery-powered video doorbell that works with any home. See what’s happening at your door and answer it from anywhere. A taller field of view lets you see people from head to toe, or boxes on the ground. It has built-in intelligence that can tell the difference between people, packages, animals, and vehicles, and send alerts about what’s important to you. You can even use pre-recorded responses, like “You can just leave it. Thanks!” With 3 hours of free event video history, you can go back and see what you missed. And because there are no wires, you can install it yourself.Product Highlights:Never miss the important stuff - See what’s happening at your door, and get relevant alerts when there’s activity.Say hello while you’re away - Answer your door in real time or leave pre-set messages.Wire-free to work with any door - No wires means it works with every home, from houses to apartments.Product Features:Check in anytime.Know what’s happening at your front door 24/7. You can check up on things whenever you want, from anywhere.See clearly in any light.See key details in all kinds of light. HDR helps with bright, high-contrast sunlight, and night vision gives you a clear image even in low light and darkness.See from head to toe.The Nest Doorbell is designed with a taller vertical field of view that’s great for doorsteps. A 3:4 ratio means it can help you see people from head to toe, and packages left on the ground.Know what’s happening at your door.The Nest Doorbell can tell the difference between people, packages, animals, and vehicles. It can even recognize familiar faces and tell you who’s there.Choose the areas that matter most.Activity Zones let you define specific areas and get notified when something happens there. So you only get alerted about things that are important to you.Go back in time.If you miss a notification or other event, you can go back and see a recording of what happened with 3 hours of free event video history. If you want more video history, you can add a Nest Aware Plus subscription for up to 60 days of event video history.Know when a package arrives.With special alerts for deliveries, the Nest Doorbell will let you know when it sees that a package has arrived.Talk to who’s there, from anywhere.Talk and listen to visitors through the built-in speaker and microphone. Tell someone you’ll be right there, or let a delivery person know where to leave the package.Leave visitors a message with just a tap.Quickly respond to someone at your door by choosing from pre-recorded messages, like “Just a sec, we’ll be right there,” or “You can just leave it. Thanks!”Wi-Fi problems? Not a problem.If your Wi-Fi goes down or there’s a power outage, the Nest Doorbell will automatically record important events for up to one hour in its local memory. When things are up and running again, you’ll be able to see exactly what happened.Install it yourself.Wire-free means installation is painless. You can put it at the vantage point that works best for your door.Connect to your existing doorbell wires and chime.How you hear your doorbell chime will depend on how you install the Nest Doorbell.Battery installationIf you choose wire-free installation using battery power, you’ll get an alert on your phone, and on your Google Assistant-enabled speakers or displays when someone rings the doorbell. With wire-free installation, your existing chime will not ring.Wired installationYou can connect the Nest Doorbell to your existing doorbell wires. If you choose wired installation, you’ll also hear your existing chime when someone rings the doorbell.Everything works together.The Nest Doorbell works with other Nest products. Hear announcements on Nest Mini when someone is at the door. And Nest Hub will show you who’s there when someone rings the bell.Product Specifications:Camera1.3-megapixel color sensor6x digital zoom3:4 aspect ratioVideo HD, 960 x 1280 pixels, up to 30 FPS24/7 live viewNight visionHDRH.264 encodingVideo History - The Nest Doorbell (battery) includes 3-hour event video history. You can upgrade to 30 days of event video history with a Nest Aware subscription, or 60 days of event video history with Nest Aware Plus. However, whether you choose battery or wired installation, the Nest Doorbell (battery) cannot continuously record 24/7 video history. Google Nest offers other cameras and wired doorbells that can record 24/7 video history with a Nest Aware Plus subscription.Audio High-quality speaker and microphoneTwo-way audio with noise cancellationField of View - 145° diagonalLights - White LED status light ring; RGB LED status lightSensors - PIR (motion and proximity sensor); MagnetometerNight Vision - See up to 10 feet; Four 850