Versatile & Small Sizevideo 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,PIR and other functions to make your life more convenient. HD & 166WIDE VIEWING ANGLE HD Doorbell camera 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. Night vision mode will be Auto switched. Smart PIR Motion Detection & Night Vision Wireless camera doorbell is the smart PIR Motion Detection: Sends alerts as soon as motion is detected or when visitors press the Doorbell. Low, midium and high sensitivity within 11.48ft for you to choose. ringtones so you don't miss any visitors.Day or night, rain or shine, it allows you to take photography and record videos at any time. IP5 WATERPROOF & ENERGY SAVING IP5 dustproof and waterproof rating;You don't have to worry about battery life is too short because 18650*3 battery(full charge can support 2 months use),more safer.Please fully charge the device before use. Easy to Install & Cloud StorageUse QR code to connect your phone in 1 minute without complicated connection stepsFree 7-day cloud storage cycle.No need SD card required .