Biometrics, security: Using advanced biometrics technology, you can open the lock through fingerprint verification, without worrying about the risk of forgetting the key or password disclosure, providing a solid guarantee for your home security.Large capacity: Fingerprint capacity is very large, you can store 50 fingerprints. Convenient to store fingerprints of family members or close friends.Super security: The door lock uses semiconductor and biological characteristics of technology to provide you with first-class security and avoid the same fingerprints.Quick unlock: Ergonomic design, the door can be quickly unlocked within 0.3 seconds by putting a fingerprint on it. It will automatically lock it for you.Installation is simple: No power cords or professionals are needed. It is suitable for most doors that use lever door locks, and is suitable for left and right handles.