【3 Ways To Unlock】 Multi-function of Fingerprint Unlock, Code Unlock, Mechanical Key Unlock, It can enter 50 fingerprints, Eliminate the trouble of forgetting to bring the key when you go out. 【Easy to install】 No wiring and no drilling. quickly and easily install the lock just with a small screwdriver, Adjustable latch. Both the left and right doors are suitable. Fits for most standard residential door, or apartment, office, etc. 【Safe And Reliable】 Fingerprint 0.3S unlocking and the recognition rate up to 99%, 3 seconds Automatically locked after unlocking, Stainless steel door lock is sturdy and tamper-proof. 【Long Battery Life】 Low power consumption. It needs 4 pcs AAA batteries can works more than a years. Low battery reminder. Emergency USB charging port and normal key unlocking method provide a double guarantee.