The FITNATE Smart Door Handle combines classic design with modern technology, offering a 2-in-1 unlocking method—fingerprint lock and emergency backup key. Experience keyless entry, making your life more convenient and secure. This smart door lock supports fingerprint management, auto-lock, anti-lock, passage mode, silent mode, and USB emergency charging, enhancing your living experience. The upgraded biometric door handle features 0.1-second quick fingerprint recognition, supporting up to 50 fingerprints, including 2 administrators and 48 users, with a 5-second auto-lock function to ensure home safety. Easy to install in minutes, suitable for most doors, requiring only a screwdriver. Note: Requires 4 LR3/AAA/1.5V batteries (batteries not included). Whether for a bedroom, office, apartment, hotel, or garage, this smart fingerprint door handle is the ideal choice. Fingerprint data is stored locally, not uploaded to the cloud, ensuring privacy and security for you and your family. Let the FITNATE Smart Door Handle add a touch of intelligence and convenience to your life.