[Emergency Charging]: The keyboard door handle requires 4 AAA batteries, has a low battery reminder function, and is equipped with a type-c interface for emergency charging. condition. [Safe and Reliable]Fingerprint door lock can unlock your 1 second. The false recognition rate is Less than 0.001%, it can accurately identify fingerprints, and it is safe and reliable. And the door lock automatically lock after 3 seconds after unlocking, preventing safety problems caused by forgetting to close the a hurry. [DIY Installation]Installation can be completed independently with just a screwdriver. Please check the door size before purchasing. Suitable for thickness 1.18 (30 mm) - 2.56 (65 mm) inches, lock margin 2.36 (60 mm) - 2.76 (70 mm) inches, keyhole size 1.97 (50 mm) - 2.36 (60 mm) inches door. [Fingerprint Management]The smart door handle can be adjusted and installed on the left and right doors. 20 fingerprints can be entered, and relatives, friends, tenants, etc. can be invited to enter fingerprints., Weight: 1.81219979364 Pounds, Manufacturer: PokFhgur