CONNECTIVITY: Unlock this smart lock with Bluetooth from your smart phone (no wi-fi needed), or a manual direction-based code; Temporarily disable Bluetooth when storing your phone with other locked valuables, to prevent unauthorized access ALL-WEATHER SECURITY: Smart lock includes a 2-piece weather cover, to protect against the elements anywhere smart security is desired SHARED ENTRY: Bluetooth padlock allows for shared temporary or permanent access, via smart phone or keypad ACTIVITY MONITORING: Receive tamper and low-battery alerts via free Master Lock Vault Home and Master Lock Vault Enterprise apps for Android and iOS TOP-TIER SECURITY: Padlock uses military-grade Bluetooth authentication and encryption DURABILITY: Smart padlock has metal body, tough boron-steel shackle, and anti-shim locking mechanism GATE LOCK/LOCKER LOCK: Smart lock is compact and ideal for fences, gates, sheds and job sites, as well as indoor security as a locker lock or storage unit lock DIMENSIONS: 2-7/32 in. wide lock body; 11/32 in. diameter shackle with 2 in. length, 15/16 in. width MORE INFO: Answers to FAQs, troubleshooting and technical support for this Bluetooth padlock can be found in the User Guide, found in the technical specifications section of this page