1、It is small and easy to carry, stores up to 20 fingerprints. 2、Quickly identify your fingerprints with advanced semiconductor contact fingerprint sensors. 3、Each time it is unlocked, it will continuously increase the pass rate through fingerprint stitching, image recognition, and self-learning algorithms. 4、The emergency power supply adopts USB interface, which is convenient for use with mobile phone chargers or charging device. 5、Suitable for wardrobes, drawers, shoe cabinets, office cabinets, newspaper boxes, metal cabinets, wooden cabinets, tool boxes, mailboxes, school lockers, etc. 1 x Fingerprint Lock1 x USB Cable1 x Manual Condition: 100% Brand NewItem Type: Fingerprint LockMaterial: Zinc AlloyColor: As Pictures ShownUnlocking Mode: Pure FingerprintFingerprint Capacity: 20 Power Type: Lithium Battery (Built-in)Use Time: Charging for 2 hours, 180 days of continuous use, unlocking ten times a day