1FINGERPRINT RECOGNITION: The drawer lock is a semiconductor fingerprint recognition, which is small and exquisite, to meet your daily needs 2FAST IDENTIFICATION in 0.5 SECONDS: The fingerprint lock uses professional biometric technology to quickly identify and unlock in 0.5 seconds, and identify at any angle in 360 degrees 3FINGERPRINT CAPACITY: The fingerprint lock has a fingerprint capacity of 10, which can be managed by multiple people at the same time, effectively improving work efficiency 4SELF LEARNING ALGORITHM: The drawer lock has a self learning algorithm to compare and record each fingerprint. Low power drawer lock can be connected to an external USB mobile power supply 5WIDE APPLICABILITY: The fingerprint lock has a wide range of applicability and can be used in bedrooms, study rooms, living rooms, offices, etc Item Type: Fingerprint Lock Material: Zinc Alloy Model: G7-6 Battery: 3.7V Rechargeable Lithium Battery 55mah (built in battery) Fingerprint Capacity: 10 Pcs Administrator Fingerprint: The First 3 Fingerprints Entered Number of Valid Entries: 5 Times Recognition Speed: 0.5 Seconds Suitable for Drawer Board Thickness: Approx. 9mm/0.4in or More Low battery alarm: The red light flashes for about 5 seconds. The red light is on when charging, and the red light is off when it is full 1 x FingerprintLock 1 xUser Manual with Built in Battery