Well Made: The key box is 100% made of 0.6 mm cold rolled steel and the key hooks are made of plastic. The solid surface and construction can prevent scratching, peeling and rust Multiple Unlocking Methods: Access to the lockbox via the included key, Bluetooth via the app, remote WiFi via the WeHere W100 bridge (bridge sold separately), or via a password set in the app; flexible access options to meet different requirements Customizable Passwords: Choose from three password types—dynamic(One time password), time-based, or static; perfect for temporary or long-term access management Secure Guest Code Generation: Generate and share guest codes via URL; provides peace of mind with dynamic, time-based, or static passwords tailored to your needs Guest and Member Access: Easily add guests or members with tailored permissions; manage access securely through the app, with options for time-limited or ongoing access Easy Setup and Maintenance: Simple installation with included instructions; powered by 2 AA batteries, with battery level visible in the app for easy monitoring Wdie Scenarios: Our key box ideal for school, car company, office, apartment rental , car lots, property managers,home garage etc After-Sales Service: Please contact us by e-mail, the e-mail address in the APP--Account--about us to view [Heavy-duty key box] strong hinges using rivets to lock, long time use hinges will not fall off, the sides of the double-layer steel plate structure, ordinary people difficult to pry open.Heavy-duty key box, strong hinges using rivets to lock, long time use hinges will not fall off, the sides of the double-layer steel plate structure, ordinary people difficult to pry open.