Innovative technology with a capacitive sensor on the chain lock ensures that you can open your bike lock without any keys or dials - just using your fingerprint. The Yardo chain lock essentially consists of a 7 millimetre thick round chain that offers robust protection against theft. The ends of the chain, which is available in lengths of 85 cm and 110 cm, are connected to a lock body made of coated die-cast zinc. The special feature of this lock body is that it is equipped with a precise fingerprint sensor that recognises up to 20 scanned fingerprints. If you place your clean finger on the sensor, the lock opens in an instant. Scanning multiple fingerprints allows you flexible handling, for example if you want to share your bike lock or bike with several people. The locking process is extremely simple, as the lock locks automatically when the lock ends are inserted into the lock body. The lock body is encased in a silicone cover to prevent scratches to the bike frame. The IP66 and IP68 certification attests that the lock body is dustproof and weatherproof. A double ball lock provides improved protection against forced opening. With the Yardo chain lock, convenience, functionality and design go hand in hand and you are in tune with the times. The fingerprint technology is trend-setting and offers maximum convenience and a high level of security. A CR2 battery is included in the scope of delivery.