Never worry about a forgotten combination again with this Bluetooth padlock and open your lock with keyless convenience. Bluetooth technology lets you use your smartphone to open your lock with the free Master Lock Vault eLocks app. Use the app to monitor access history and receive tamper alerts for complete control and security. Plus, create a temporary or permanent passcode to share access with others 24/7 or limit access to days or nights. 7mm diameter shackle is made of boron alloy for maximum resistance to cutting or sawing. Locking mechanism is engineered with anti-shim technology for additional peace of mind. Low-battery notification and a reminder on the padlock and app ensure it's always fully powered. In the event of complete battery depletion, battery jump offers a boost of power for temporary access if the battery dies. Bluetooth padlock with included battery is perfect for cabinets, indoor storage lockers and more. Master Bluetooth Padlock - Bluetooth is one of many Security available through Office Depot. Made by Master.