1The operation method is simple, long press for 3 seconds to set the fingerprint, and the fingerprint collection time is fast. 2Adopting fingerprint unlocking technology, keyless unlocking, convenient and quick. 3Made of durable zinc alloy material to prevent shearing, safe and durable. 4There is no network connection to prevent the disclosure of private messages. 5Suitable for dormitory lockers, warehouse doors, cabinets, doors, backpacks, suitcases, warehouses, bicycles, cabinets, offices, and spa rooms. Item Type: Fingerprint Padlock Material: Zinc Alloy Product Size: Approx. 90.6x53.7x25mm / 3.6x2.1x1.0in Weight: Approx. 215g / 7.6oz Scope of Application: dormitory lockers, warehouse doors, cabinets, doors, backpacks, suitcases, warehouses, bicycles, cabinets, offices, spa rooms. Fingerprint Fingerprint sensor Semiconductor fingerprint sensing technology 72x64 record 10 times and save 10 groups Fingerprint head shape Square 10.4x10.4mm Storage capacity 10 sets of fingerprints Technology Biometrics False acceptance rate 0.002% Rejection rate 1% Fingerprint collection time 0.5 seconds Fingerprint matching time 1.0 second Administrator fingerprint capacity 2 sets of fingerprints Fingerprint settings Short press to unlock, long press 3S to set fingerprint, long press 6S to delete fingerprint Material Lock body material Integrated stamping and molding of all zinc alloy Lock beam material Integrated stamping and molding of all zinc alloy Lock beam diameter 7mm Lock cylinder No mechanical lock cylinder IC Proximity Card IC proximity card Not support Other Motor Planetary gear motor M10 Operating Voltage 3.7V Battery Lithium battery 180mAh 3.7V (built-in battery) Recharging current 5V/200MA Continuous standby 9 months Full of hints Red light off Low battery alarm 3.5V LED lights