What does a Ringo digital key look like?

Ringo digital key acts like a classic key that unlocks the door.
Digital key is basically a one way secure connection that unlocks the door remotely.
A guest receives a digital key via email or text message. Guest activates it by clicking on it, it shows the picture of the door like the picture on the right. Guest clicks the red lock button and the door opens for 5 seconds. A guest does not need an app.

ringo digital key

How does the Ringo digital key work?

When guests arrive at the location of their accommodation, they simply click on the Ringo digital key to open door.

Guests can unlock the common door of the building and with the same digital key as well the door of the apartment in that building.