Video : 1080 HD Video, Live View, Night Vision, Motion Detection : Advanced Motion Detection, Customizable Motion Zones , Field of View : 160° horizontal, 90° vertical , Audio : Two-way audio with noise cancellation , Works with Alexa , Illuminates and sends announcements to Echo devices when visitors press your doorbell button or motion is detected, and lets you see, hear and speak to visitors with select Echo and Fire TV devices. Dimensions – 4.80 in. x 2.75 in. x 2.17 in. (11.94cm x 6.98cm x 5.51cm). Ring Elite lets you monitor your home, answer the door and greet guests straight from your phone. With instant alerts, HD video and two-way talk, you can see, hear and speak to visitors from anywhere. If you’re busy, save time and ask visitors to leave a message with pre-selected Quick Replies. It’s like an answering machine for your front door. Create and customize your own motion zones, so you can focus on the most important areas of your yard. When motion is detected, you’ll get an instant alert on your phone, tablet and PC. Power over Ethernet gives you the most reliable connection in smart home security, allowing you to stay online, maintain power, and get the highest quality HD video and audio right at your fingertips.