Fingerprint Unlock: Say goodbye to cumbersome password combinations! Unlock this smart padlock with your fingerprint in a fraction of a second. Never worry about losing or forgetting your password again. This fingerprint lock can register up to 15 fingerprint sets. You can also authorize and share the lock with family/friends for convenient use. Robust Construction: The fingerprint padlock body is made of aluminum alloy (AD12 alloy), and the shackle is made of stainless steel (201 stainless steel). It boasts excellent tamper resistance and rust resistance to protect your cabinet or home from thieves. USB Rechargeable: This intelligent padlock features a 100MAH rechargeable lithium battery. Charging time is approximately 1.5 hours; a full charge provides up to 4 months of use (2800 unlocks). If the battery runs out, the smart lock remains locked; simply connect it to a USB power supply to restore functionality. Bluetooth Functionality: The fingerprint padlock records unlock attempts, including time and location, allowing you to monitor usage in real-time. Connect the smart padlock to the free mobile app via Bluetooth. Use the app to register fingerprints, unlock, set authorized users, check the last 1000 unlock activities, and more.