Ring Video Doorbell 2 + $17 back

Includes Ring Video Doorbell 2 with two interchangeable faceplates, mounting hardware, USB charging cable.
Motion sensors with adjustable motion zones
Infrared night vision
Full HD 1920x1080p video
Use doorbell wires or built-in battery for setup
802.11b/g/n Wi-Fi
Live View
Two-way audio with noise cancelation
Compatible with free Ring app available on iOS, Android, and Windows 10 smartphones and tablets
Weather-resistant design; -5F to 120F temperature range
Quick-release built-in rechargeable lithium battery
Assembly required
Measures approximately 2-1/2"W x 5"H x 1-1/8"D