?【THREE UNLOCK MODES】：Fingerprint door lock support three unlock modes: fingerprints(50fingerprint users), passcodes(100 groups of passcodes) and mechanical keys(2 pcs).
?【AUTO-LOCKING 】: Smart lock is equipped with an automatic-locking function. The interval time of automatic locking can be set through the APP. After unlocking, it will be automatically locked within the set time.
?【VOLUME ADJUSTMENT】: The sound of the smart lock is divided into 1, 2, and 3, and the level can be manually adjusted.（1: The smallest sound, 2: medium sound, 3: maximum sound）
?【EXTERIOR BACKUP POWER】：Smart door lock has an external backup power interface, when you forget replaced the battery, you can use emergency USB for power supply and unlock.（This interface is only used for emergency power supply and cannot be charged）
?【EASY INSTALLATION】: Keyless entry 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 no drilling. Fit both left handed and right handed doors.
❗【TIPS 1】: After receiving the new product, you need to add the administrator fingerprint or password correctly, otherwise the smart lock will be in a state that any fingerprint can unlock the smart lock.
❗【TIPS 2】: Please purchase and install 4 AAA alkaline batteries, please make sure that the cable is plugged in properly during the installation.
