Multiple unlocking methods: You can open the door by fingerprint + password + key/fingerprint + password + APP, which is both smart and convenient. Large capacity: The fingerprint capacity is very large, which can store 50 fingerprints. Convenient to store fingerprints of family members or close friends. Super security: The door lock will use semiconductor and biological characteristics of technology to provide you with excellent security and avoid the same fingerprints. Quick unlock: The ergonomic design can quickly unlock the door within 0.3 seconds by putting a fingerprint on it. It will automatically lock it for you. Easy to install: no power cord or professionals are needed. It is suitable for most doors that use lever door locks, and is suitable for left and right handles., Manufacturer: DMETE