Bluetooth Smart Combination Padlock

Bluetooth smart padlock, features 1-29/32″ wide metal body for durability, 9/32″ diameter shackle offers 7/8″ vertical clearance, made of boron alloy offering maximum resistance to cutting & sawing, use your smartphone to open your lock with the free master lock vault locks app, never worry about a forgotten combination, share access with others temporary or permanent, share 24/7 access or limit to days or nights, monitor access history & receive tamper alerts, backup access using directional code on lock keypad, low battery notification & reminder on padlock & in app, comes with easy to replace cr2450 battery, battery jump allows for temporary access if battery dies while locked, locker mode setting allows for storage inside a locker, compact footprint fits most lockers.