Level 18 security. 13.5mm double locking, sliding bolt. 3D motion sensing alarm, 100db. SmartX made with Blu-tooth technology, keyless lock system. Connects to ABUS SMARTX APP for lock / alarm / battery status. Lock constructed from specially temper hardened steel. USB-C rechargeable battery. Multi-color LED light and audible signals inform about battery and lock status. Location memory from last pairing.