The Igloohome Smart Keybox 2 is a handy door lock if you let your home through AirBnB, for example, if you want to give your sconce (st) access. Mount the lock with screws and plugs on your wall or hang it on your door handle. Via the app on your smart device (smartphone and tablet) you set a unique code to open the lock. This code is valid for a certain period after which it automatically expires. Example: you have rented your home through Airbnb. Your tenant expects to arrive at your home around 2 pm. Through the app you set a unique code that is valid between 12.00 and 16.00. So you do not have to be present at the location when your customer arrives. Of course, the lock is also useful as an extra back-up key box outside the door. The lock works on 4 AAA batteries. These are not included as standard.