1. 100 groups of Fingerprints: The U Lock supports up to 100 fingerprints recording(including one administrator).
2. USB Rechargeable: Built-in a 250mAh lithium battery, can support up to 6 months standby time.
3. Three different unlock methods: Sensitive fingerprint unlock, password and technical key can be used in emergency situation.
4. Easy operation: Just add or delete fingerprints easily by following the instructions of the user manual.
5. Widely Application: Used for doors, motorcycle, bicycle ,warehouse,guard,etc.
6. Made of carbon steel, anti-oxidation,sturdy and durable.
Lock Shackle Available