Features fingerprint unlocking. Use your fingerprint as your password for enhanced security and convenience, eliminating the worry of losing keys. Fingerprint identification offers a more secure and private way to unlock, improving your travel safety. Easy to use and operate, no tools required. You can easily add or remove fingerprints according to the user manual. Universally suitable for doors, cabinets, bicycles, backpacks, lockers, etc. Also applicable to suitcases and trunks. Includes an LED indicator with 3 colors to show different lock states. Specification: Item Type: Padlock Fingerprint Sensor: Semiconductor fingerprint sensor technology, 72 x 64, register 10 times, save 10 groups Fingerprint Head Shape: Square, approx. 10.4x10.4mm/0.4x0.4in Storage Capacity: 10 sets of fingerprints Technology: Biometrics False Recognition Rate: <0.002% Rejection Rate: <1% Fingerprint Collection Time: ≤0.5 seconds Fingerprint Matching Time: ≤1.0 seconds Administrator Fingerprint Capacity: 2 sets of fingerprints Fingerprint Setting: Short press to unlock, long press for 3 seconds to set fingerprint, long press for 6 seconds to delete fingerprint lock Body Material: PC + weather-resistant ABS plastic Lock Beam Material: Stainless steel wire Lock Beam Diameter: Approx. 4mm/0.2in Lock Cylinder: No mechanical lock cylinder