Smart Fingerprint U-Lock with App Control – Keyless, Waterproof, USB-C Rechargeable

Experience keyless convenience with professional-grade security. The semiconductor fingerprint sensor unlocks in under 0.5 seconds with anti-copy technology that prevents duplication—significantly faster and more secure than fumbling for keys or remembering combinations. Store 10 unique fingerprints for family members, roommates, or riding partners, all managed through the TTLOCK smartphone app via Bluetooth. The app provides remote unlock capability, real-time access logs showing who unlocked and when, and user authorization management. Emergency backup key ensures access when the battery depletes, though the 3-month battery life per charge means you'll rarely need it.

Premium alloy steel construction undergoes multiple heat treatments to create a hardened shackle that resists cutting, picking, drilling, and leverage attacks. The specialized lock cylinder features complex key design to deter picking attempts, while the silicone protective sleeve prevents scratching your bike's finish. IP67 waterproof certification means full submersion protection—rain, snow, humidity, and puddles won't affect functionality. USB-C charging completes in 3 hours for 90 days of use. The U-lock form factor provides superior security geometry compared to cables or chains, making this ideal for securing high-value e-bikes, motorcycles, and premium bicycles in high-theft urban areas where traditional locks fail.