Features 1. Versatile and Small Size: Our video doorbell is one of the smallest sizes in the industry, and the designer has specially designed it according to the size of the American home door frame, has video intercom, taking photo, video, night vision, and other functions to make your life more convenient. 2. Cloud Storage: Addtional fee required for cloud storage. 3. HD & 166WIDE VIEWING ANGLE: Upgrade HD real-time view with wide viewing angle lets you never miss any visitor. Sends message as soon as motion is detected at day and night. 4. Our Wireless Doorbell Indoor is the smart PIR Motion Detection: Sends alerts as soon as motion is detected or when visitors press the Doorbell. 5. Easy to Install: Use QR code to connect your phone in 1 minute without complicated connection steps. Specification Material: ABS, Electronics Color: B;lack Size: 144 x 74 cm Weight: 420 g Plug Type: US, UK, AU Package Include: 1x Wireless WiFi Ring Doorbell 1x 3x18650 Battery