Why do I also need a Bridge to use the Opener?

The Opener communicates through Bluetooth (BLE). However, since a Bluetooth connection between your apartment and the front door of your building is usually not stable enough, or because there might not even be a connection at all, we recommend exclusively using the Opener together with the Bridge, which is connected to Wi-Fi. You can additionally also use the Bridge to remotely open the front door of your building.