BioLock C3 Smart Chain Lock (Bicycle Lock with backup keys) Bluetooth Tuya Smart Life APP access, Fingerprint ID and backup keys C3 is a smart chain lock with Bluetooth (Tuya Smart Life mobile APP) access and management, fingerprint recognition technology and backup keys. By using Tuya Smart /Smart Life APP, users are available to access the chain lock, add/remove fingerprints, authorize families or friends to open the lock remotely, record unlock log and wrong fingerprint alarms, setting intelligent linkages like family members go home (unlock) notice, etc. C3 is also equipped with a smart biometric sensor, it identifies users precisely and unlock in 0.5 seconds by finger touch. Two backup keys for users urgent unlock purpose in case of mobile phone power down or finger unrecognized. IP65 waterproof aluminum alloy lock body and stainless-steel chain, inbuilt rechargeable battery for up to 6 months standby or 2,500 times unlocking per charge. C3 smart chain lock is durable designed for your bicycle, motorbike or other anti-theft security and safety protection purposes. Key Features & Advantages 1. Bluetooth connect, Tuya Smart/Smart Life APP access and management. 2. Remote operate and authorize other users or visitors to access the lock. 3. Fingerprint unlock and backup keys. 4. Durable and sturdy, IP65 lock casing, 4mm diameter stainless-steel lock chain for superior cut resistance, protect your assets against thieves. 5. Family and friend share, up to 20 sets fingerprints can be stored. 6. Rechargeable lithium battery, 6 months standby or up to 2,500 times unlock. 7. Safe and secure, C3 will remain locked even run out of power, a quick charge by any USB power source will awake it and able to unlock it. 8. Low power alert and event data push on APP. Applications 1. Bicycle, Motorbike, E-bike, Electric scooter. 2. Truck box locker. 3. Main gate, glass doors. 4. Warehouse, garage, fence, office, toolbox. 5. Shop, store. 6. Courier box locker. Specifications Bluetooth: Bluetooth LE 4.2 Fingerprint reader: 120*120 sensor Max. authorized fingerprint: 20 sets ESD +/-15kV air, +/-8kV contact. FRR