Product Feature: Wide Application: perfectly used for doors, cabinets, bikes, backpacks, storage lockers, etc. Easy Operation: no need any tools, you can add or delete fingerprints easily by following the instructions of the user manual. 10 Groups of Fingerprints: the padlock supports up to 10 fingerprints recording(support two administrators). Specifications: 1.Material: zinc alloy 2.Working voltage: 3.0-4.2V 3.Lock weight and Size:90g,7.64.61.3(cm) 4.Fingerprint sensor coverage: 7264MM 5.Unlock speed: within 1 second 6.working period: a year per power Charge 7.LED light: three color light: red / blue / green 8.Battery: 3.7V lithium build in battery 9.Working temperature: -10~+40 degrees Celsius 10.Fingerprint capacity: record 10 times and save 10 groups Brand Name: Golden Security Handle Direction: Left Pull Model Number: WLS0101 Material: Zinc Alloy Product name: fingerprint smart padlock Fingerprint capacity: record 10 times and save 10 pieces LED light color: red / blue Battery: 3.7V lithium battery Working voltage: 3.0-4.2V Life time: half a year Working temperature: -10~+40 degrees Cel Usage: door/handbag/closet/luggage safty padlock Color: silver padlock Material: zinc alloy metal padlock Charging way: USB charging Unlock way: fingerprint touch instead of digital padlock Size: 46 x 40 x 16mm