【3 Ways Unlock】3-in-1fingerprint door lock: 100 groups of fingerprint + 100 sets of anti-peep virtual passwords + 2 physical keys. Indoor locking mode, auto-locking, mute mode, voice prompts, adjustable volume, emergency charging to unlock functions will bring you an excellent unlocking experience!

【Fingerprint Quickly Unlock】Finger print door knobs adopts advanced FPC biometric fingerprint sensor, the recognition rate is up to 98%, just 0.3 seconds to open the door, you don't have to worry about forgetting the key when you go out, you can use your finger to unlock at any time.

【Lower Power Reminder】A battery indicator has been added to the keypad door handle. This indoor password lock requires 4*AAA batteries (not included) and has a lifespan of about 8-10 months. In addition, when the battery is dead and there is no key, you can use the charging cable into the USB port on the front of the front panel for emergency unlocking. (Note: This interface cannot charge the battery, it is only used for emergency charging, please replace the battery in time.)

【Easy to Installation】Biometric door lock fits most standard single-cylinder US interior doors. The simple installation takes minutes with a screwdriver without extra drilling. Universally fits indoor and exterior wood doors thickness between1-3/8"" (35mm) to 2-3/16"" (55mm), adjustable latch 2-3/8"" (60mm) or 2-3/4"" (70mm). Please kindly check your front door size before purchasing. Follow our video if you still have any doubts.

【100% satisfaction guarantee】Smart bedroom door knob handles come with a 30-day refund and replacement service, and a 1-year product warranty. If any installation issues or missing parts, please feel free to contact our customer service support, we will be at you service 24/7.