1.used for motorcycle, e-bike, door 2.Patent:02237223.7 3.CE&ROHS 4.110db ... padlock , Patent: 02237223.7Can be used on: Motorcycle, electric bike,Door , etcLock Features:105-110 db alarm soundAuto-alarming system ... cut & saw)6 pcs AG13(4.5)button batteries, battery life:10-12 monthsSpecification(cm): 22.5(H) X 11 ... deposit and 70% before shippment)sample(western union) Alarm padlock for electric bike