GRADE A2 Key Features Connects Wirelessly Rechargeable battery or connect to wiring Night vision up to 13ft / 4m 2-Way audio True Detect heat and; motion sensor Weather resistant IP65 rating App Swann Buzz View 24/7 Push notifications Wide 112º viewing angle Warranty 12 Months Most burglars will knock on the front door or ring the doorbell to check for presence. The Smart Video Doorbell lets you answer the doorbell from anywhere so you can pretend youre home. You see and; hear visitors but they cant see you. Just talk back like on a video intercom via the Swann Buzz app. True Detect heat and; motion sensing triggers recording and; push notifications so youll always know whos been at your door. See everything in HD day or night with the 13ft (4m) night vision & wide 112º viewing angle for 24/7 protection. All recordings are stored locally during 30 rolling days. No subscriptions. No fees. No ongoing costs. Ever. Use it with the built-in rechargeable battery or connect it to your existing doorbell wiring while internet connection is wireless. Add a battery-run Chime Unit to your doorbell which you can carry around your home so you never miss a visitor. What's in the Box. Video Doorbell Unit Battery Chime Unit Mounting Bracket Mounting Tools Screws and; Wall Plugs USB to Micro USB (Universal Serial Bus) Charging Cable User Manual Theft Deterrent Stickers..