Smart Key Box Lock Box, App-Controlled Smart Product Street Trade Portable Electronic Security Key Safe Holder Box, Wall Mount Door Key Storage Box With Code, Suit For Street Service Hotel Room Renting * App control via Bluetooth, you can manage property accessibility safely, conveniently and smartly, both for you and your guests. * Every time when the box is been opened, ENERJSMART App will keep all the tracks in the opening record, you can have a piece of mind knowing who, when and with which method of accessing. * Sturdy and reliable: The security is extremely high, it is not easy to be damaged, and the special anti-theft material is used to safely store the items you put inside.