Bluetooth Padlock, Electronic Lock Technology Bluetooth, Security Level High Security, Shackle Material Boron Alloy, Body Material Zinc Alloy, Shackle Dia. 11/32 in, Shackle Height 2 in, Shackle Width 15/16 in, Body Thickness 2 3/16 in, Body Height 2 15/16 in, Body Width 2 7/32 in, Shackle Configuration Open, Square, Black, Weatherability Weather Resistant, Includes BatterySpecifications Mfr #: 4401LHENTItem: Bluetooth PadlockElectronic Lock Technology: BluetoothSecurity Level: High SecurityShackle Material: Boron AlloyBody Material: Zinc Alloy