Secure your wheels with the TRON – XD Fingerprint Shackle Lock. Using the latest technology and smart design, this biometric lock uses the one key you always have on you: your fingerprint. Armed with a 508dpi high-resolution scanner, the TRON – XD offers 360° scanning to open the lock in just half a second. Incredibly, thanks to machine learning, the TRON – XD gets faster over time for a seamless responsive user experience. Easily recharging via the included USB cable, the TRON – XD actually provides over 2000 openings on a single charge. In addition, it can store up to 20 different fingerprints to keep access safe and secure. From your bike to your scooter to just about anything, the TRON – XD gives you total peace of mind. In the event the battery dies, there is an emergency manual mode for unlocking. With the TRON – XD, you’ll never have to worry about carrying keys or remembering codes again.