RING Video Doorbell 3 & additional Quick Release Battery Know what’s happening day or night with the Ring Video Doorbell 3. Featuring improved Motion Detection and enhanced wifi connectivity, 1080p HD Video, Live View, Two-Way Talk and High definiton Night Vision to let you see, hear and speak to vistors wherever you are, anytime. Included is a additional easy-to-use rechargeable Quick Release Battery pack so you can keep you protection going. Depth: 8.5 MM 1080p HD Video & Two-Way Talk: See hear and speak to who is ever at your door from where ever you are Live View: Access a live HD video feed from your Video Doorbell at any time Advanced Motion Detection: Get real-time notifications on your phone or tablet whenever someone presses your Video Doorbell or Motion is detected Create up to 3 Motion Zones to only detect motion in your chosen areas, allowing you to focus on the notifications that matter. Create areas in the Ring App to block sections of your camera’s field of view, so that you only see and record what matters most. Enjoy hands-free convenience, use Two-Way Talk and launch the Live View feed with Echo Show devices"Alexa show me the front door" Quick release rechargeable battery: Always ready to protect your home without the need for hardwiring If you’re too busy to answer the door or just don’t feel like answering, save time and use Quick Replies to respond Package Alerts: Receive alerts whenever a package is detected within your specified zone, an exclusive Ring Protect subscription feature. Battery Pack: Keep your protection going with an additional, easy-to-use quick release rechargable battery included Height: 14 MM Width: 9 MM