keyless usb rechargeable door lock fingerprint smart padlock quick unlock zinc alloy metal self developing chip

0.5s unlock,360 arbitrary angle biometric recognition, induction rate 0.1s,10 fingerprints can be registered .micro usb charge,three color light: red / blue / green,1.try to touch the sensor by different angle when lock records your fingerprint to ensure that it can recognize well during working.2. follow the steps strictly to record your fingerprint to make sure the process can be done easily.fully charged, it can stand by for 12 months.low battery reminder,wide application: perfectly used for doors, cabinets, bikes, backpacks,