Fingerprint Door Lock, Finger Print Lock on Door, JINJUNYE Bedroom Door Lock, 3 in 1 Smart Lock Door Knob for Bedroom Home Office, Keypad Door Lock with Handle, Black, ??TROUBLE ELIMINATOR ABOUT FORGETTING THE KEY: JINJUNYE 3-Way fingerprint door lock, one-touch fingerprint, touchpad code, physical key(2 includes). Unlock your door in a single motion. NOTICE: The Admin fingerprint user must be recorded to active the user mode first, otherwise it can open by any fingerprints., ??UPDATED TUTORIAL VIDEO MAKE SETUP EASIER: Please check out the tutorial video we filmed. They'll save your precious time setup the JINJUNYE touch id door lock on door., ??DOOR COMPATIBILITY: Adjustable latch: 2-3/8 inches (60 mm) to 2-1/8 inches (70 mm). Door thickness: 1-3/8 inches to 2-1/8 inches (35 mm-54 mm). Both left and right doors are suitable. The bedroom door lock fits most Wooden doors, BUT NOT FOR METAL DOORS., ??NO WIRES REQUIRED: This smart Lock requires 4 AAA batteries (not included), Which can use for about 9 months. This keypad door lock with handle is also equipped with a low-battery alert and a USB port on the side of the front panel for emergency power(emergency only), but it cannot charge the battery, please replace the battery in time., ??EXCELLENT CUSTOMER SERVICE: The door knob with keypad is an ideal gift for family and friends. JINJUNYE provides 30 days replacement and refund service, 90 days warranty, and lifetime technical support. Any questions please feel free to contact us, we will be at your service 24/7., ,