TMD is the world's first smart keyless bicycle lock with alarm and Art2 certification Dutch bike security innovators debut lightweight and user-friendly smart lock that brings premium protection to urban e-bike riders Dutch innovators TMD Locks have launched the TMD Chain Lock, which introduces a fresh approach that tackles e-bike theft through a superior user experience. It is the first lock on the market to combine keyless Bluetooth operation with a motion-activated alarm and independent ART-2 certification. Thanks to its groundbreaking construction, TMD Chain Lock is lightweight and flexible, transforming bike security from a clunky daily grind into a seamless habit. And if someone tampers with your bike, the 100 dB alarm attracts enough attention to deter any bike thieves. Your phone is the key The TMD Chain Lock automatically recognises the rider's smartphone as they come into Bluetooth range; a simple press of a physical button on the lock body instantly unlocks it. The lock can be controlled entirely via the intuitive TMD Locks app on your phone. Aside from the locking and unlocking of the lock itself, the app offers other features. You can share access with up to five other users, it remembers where your bike was last parked and it displays the lock’s battery level. In the rare event of a dead phone battery, an emergency code can be entered using the physical button on the lock body, ensuring riders are never stranded.https://www.youtube.com/watch?v=4U2fipUsqL0&t=24s TMD Chain Lock specifications: Specifications RegularLength: 110 cmWeight: 1.7 kg Battery life 9 months with normal use Lock body Layer 1: Silicone cover Layer 2: Polycarbonate housing Layer 3: Protection tube – 2mm steel Chain Layer 1: Double braided polyester sleeve Layer 2: Dyneema and kevlar Layer 3: 5mm hardened steel chain