1.[3 WAYS TO UNLOCK]: Advanced 3-in-1 Keyless Biometric door lock: Fingerprint + Anti-peep virtual password + Physical Key, It can enter 50 fingerprints,The Smart lock with keypad also adopt latest biometric fingerprint access technology with accurate recognition rate up to 99%, and open the door just in 0.3 seconds. And also two mechanical keys are included for emergency use. Our door locks save a lot of unnecessary trouble 2.[INSTALLATION SIMPLIFY]: Fingerprint door lock is designed to fit US standard door, Backset 2-3/8″(60mm) and 2-1/8″(70mm), door thicknesses from 1-3/8'' to 2-1/8''(35mm -55mm). No wiring and drilling needed. the lock just with a small screwdriver quickly and easily install, adjustable latch 3.[EMERGENCY CHARGING] Low power consumption. Provide 4 pcs AAA batteries (NOT included).According to the frequency of use, it can be used for up to 12 months, It has low battery reminder. Emergency USB charging port and normal key unlocking method provide a double guarantee 4.[SAFE AND RELIABLE]: Fingerprint door lock providing your room with higher level of , it is simplistic design for office, apartment or other private spaces. The smart gate lock with handle is made of zinc alloy material, anti-corrosion, sleek and elegant with a simple, stylish look and providing a higher grade of security and privacy protection for your house, apartment, office, hotel or any other personal spaces