ROCKBROS Bike Bicycle Lock Anti-Theft Bike Motorcycle Lock Fingerprint Lock MTB Road Folding Cycling U Lock Bicycle Accessorie

7-11 Days Delivery Time ROCKBROS Anti-Theft Bike Motorcycle Lock Fingerprint Lock MTB Road Folding Cycling U Lock Bicycle Accessories  Fingerprint Entry 1. Initially, press any fingerprint to enter the fingerprint recognition port. the green LED flashes meanwhile you hear two sounds,it will unlock2. Within 5 seconds after unlocking,when the green LED is shining,put the fingerprint that you want to enter pressed the fingerprint recognition port for 4 seconds,you will hear a sound,that means enter the input mode.3. After the finger leaves, press 8 times continuously, and you will hear a sound every time. The last time there will be two sounds, then the finger will leave. After 10 seconds, the LED will go out and the recording will be completed.Brand: RockbrosName: Anti-theft Bicycle Fingerprint U LockBattery: Lithium Battery 420mAhFingerprint Capacity: 20 PiecesUsing Time: Full power can be unlocked 3000 timesSize: About 19*12*3.7cmColour: BlackMaterial: metal alloy siliconeWeight: Abo