1After using this lock, you can get rid of the trouble of losing the key or forgetting the password. Your fingerprint is your password The fingerprint ID function provides a safe and private way for unlocking and identity verification. 2Support 20 sets of fingerprints, padlock supports up to 20 fingerprint records (supports two administrators). 3USB rechargeable, builtin 110mAh lithium battery, charging for 3 hours, can support up to 1 year of standby time, and can be opened up to 2500 times. 4High strength, made of aluminum alloy body and stainless steel shackle. LED indicator, with 3 color indicator lights representing different states. 5In an emergency, it can be unlocked directly by fingerprints when charging. Improve the safety of doors, cabinets, bicycles, backpacks, lockers, etc. Item Type: Biometric Fingerprint Padlock Material: Stainless Steel+Aluminium Alloy Fingerprint Sensor: Semiconductor fingerprint sensor technology, 120 x 120, 5 times of recording, 20 groups of storage Fingerprint Sensor Shape: Square, approx. 10.4x10.4mm/0.4x0.4in Storage Capacity: 20 groups of fingerprints Technology: Biometrics FAR:1 x Fingerprint Padlock 1 x USB Data Cable 1 x Instruction