Unlock the future. This product combines cutting-edge technology, design, and security. The lock is keyless, battery-free, and can be easily controlled via a smartphone app using NFC technology. It offers uncompromising protection for city bikes, e-bikes, bike trailers, motorcycles, and scooters. The 6 mm thick stainless steel chain, produced by Pewag in Austria – Made in Europe – stands for maximum durability and highest quality. Certifications like Sold Secure Bronze confirm its high security level. The lock achieves a security rating of 9 out of 15 and features an NFC-based locking mechanism. It operates without a key, without a numeric code, and without a battery. The robust stainless steel housing, which has no openings, reduces the common attack surface for tampering. The extra-strong stainless steel chain is corrosion-resistant and features square or hexagonal links that provide significantly higher resistance against bolt cutters than round links. High convenience is ensured by the digital management and sharing of the lock via smartphone. The app displays opening history, location information, and access permissions for multiple users. The lock is maintenance-free and ready for use at any time. A durable textile cover protects against scratches. Technically, the system is based on NFC – Near Field Communication – with cryptographic encryption, comparable to mobile payment. The chain length is 100 cm, the link diameter is 6 mm, and the weight is 1400 g.