Never worry about forgetting your keys, losing them, or being locked out again. Unlock with your fingerprint, password, or mobile phone, making leaving the house effortless. Gain entry through multiple secure channels: Fingerprint, Password, WiFi App Control (Tuya), IC Card, or Backup Key. Constructed with a rugged, aluminum alloy casing, this lock is fully weatherproof and certified for extreme temperatures, making it ideal for both residential and high-traffic office use. Connected via WiFi to the Tuya app, this feature provides a real-time image of visitors at your door, allowing for remote unlocking. A pressed doorbell automatically captures and uploads an image to the cloud. Powered by 4 standard AA batteries (Not Included) . The Tuya app provides convenient low battery alerts. Should the batteries completely drain, a hidden Type-C emergency port allows for immediate backup power via a portable bank, ensuring you are never locked out. This commercial-grade lock automatically secures the door upon closing, ensuring continuous, worry-free protection for your property., Manufacturer: YBNKKUXKN