Fingerprint Lock: Say goodbye to cumbersome password combinations. You can unlock the smart padlock with your finger in just a fraction of a second. You never have to worry about losing or forgetting your password. The fingerprint lock can register up to 15 sets of fingerprints. You can also authorize and share the lock with your family/friend to use it. Robust structure: The body of the fingerprint lock is made of aluminum alloy (AD12 alloy) and the shackle is made of stainless steel (201 stainless steel). It has excellent tamper protection and rust resistance to protect your cabinet or home from thieves. USB rechargeable: The intelligent padlock is equipped with a 100MAH rechargeable lithium battery. The charging time is about 1.5 hours, fully charged can be used for 4 months (2800 unlocks). When the battery runs out, the smart lock remains locked, just connect it to a USB power supply and reset it. Bluetooth function: The fingerprint lock can also record who unlocks, unlock time, unlock location and check usage time and location in real time. Connect the smart padlock to the free mobile app via Bluetooth. You can use the app to register fingerprints, unlock, set authorized user, check the last 1000 unlock activities, etc./EA/