Xiaomi Smart Doorbell 3 24-hour smart motion detectionsAutomatic video recording of movements and notification to your phone Equipped with human body sensor and AI human shape recognition technology, Xiaomi Smart Doorbell 3 monitors abnormal movements of your doorway, and sends notifications to your smartphone once they are detected. Ultra-clear vision with 2K resolution, View the doorway in more detail Image quality is further upgraded with 2K resolution for higher quality image capture, not only ensuring good viewing results, but also clearer and more detailed recording of doorstep activity. Real-time monitoring, A doorbell that’s also a monitor Low power-consumption and fast wake-up technologies save more energy in standby mode. Supports remote doorbell wake-up and remote viewing of the doorway via a smartphone anytime and anywhere. Two-way audio communication, smart voice changer, Peace of mind even when home alone When someone rings the doorbell, you can view them in the doorway and communicate with them via your smartphone. Supports voice changer to protects your privacy. See more with the diagonal 180° ultra-wide view The new-generation ultra-wide-angle lens increases the vertical angle to 107°, to ensure clear, panoramic monitoring of the entire area in front of the door. Upgraded battery life, Only needs charging 3 times a year The built-in 5200mAh high-capacity lithium battery further improves battery life, so there is no need for frequent charging and battery replacement. The USB Type-C charging port enables faster and easier charging. Free, rolling 72-hour cloud storage of motion-triggered video clips Watch videos recorded in the last 3 days for free without purchasing a memory card or subscribing to cloud services, and check motion alert recordings anytime and anywhere. Multiple theft prevention Forced removal alarm + powerful 3M adhesive + screw fixing + one to one account pairing. When the doorbell detects that it is being removed, it will trigger an alarm, record video and send a notification to your phone. Product Specifications External dimensions 128 x 60 x 23.5mm Battery capacity 5200 mAh (TYP) Rated input 5V⎓2A Wireless connectivity Wi-Fi IEEE 802.11b/g/n 2.4GHz, RF 433MHz Infrared light 940 nm infrared light Audio system Two-way voice calls Storage Cloud storage Charging temperature 0°C to 45°C Operating temperature -10°C to 45°C Operating humidity 10% to 90% RH, non-condensing Chime Specifications External dimensions 60 x 60 x 39.6mm Rated input 5V⎓1A Wireless connectivity RF 433Mhz (receiving only) Operating temperature 0°C to 45°C Operating humidity 10% to 90% RH, non-condensing Package contents Smart doorbell x 1 Chime x 1 Type-C charging cable x 1 Mounting base x 1 Removal pin x 1 User manual x 1 Screws x 1 Attention sticker x 1