Upgraded features for upgraded peace of mind. Battery Doorbell Plus delivers everything you love about Ring doorbells, plus super clear HD+ video and an expanded Head-to-Toe field of view, so you’ll never miss a person up high or package down low. Then, protect 4 windows or doors, add motion detection to 1 hallway with Ring Alarm 8-Piece. This item includes: Battery Doorbell Plus Alarm Base Station Keypad Door/Window Contact Sensor (x4) Motion Detector Alarm Range Extender A free 30-day trial of Ring Protect Pro1 Please note: Ring Alarm and all Ring Alarm accessories require a subscription for in-app features and digital notifications, including digital arming / disarming and integration with other Ring, Echo, Alexa, and third party products. Subscription sold separately. View ring.com/protect-plans for pricing and details. Save up to $100 per year on home insurance with a professionally monitored Ring Alarm. Learn more.2 Battery Doorbell Plus ships to the U.S. (excluding Alaska and Hawaii) and Canada (excluding certain areas).3 Ring Alarm and the professional monitoring service are available and ship only within the U.S. (all 50 states, but not U.S. territories) and in Canada (excluding Quebec).