Harman Kardon CITATION OASIS DAB Schnellstartanleitung Seite 14

4.4 Chromecast
Step 1: Open a Chromecast supported app.
Step 2: Play Music.
Step 3: Tap the cast icon and select "Citation Oasis DAB".
e.g.
Spotify
Pandora
TuneIn
Deezer
Google Play Music
* The Citation Oasis DAB can be included into a multi-room system with
other products that support Chromecast. For more details please refer to
the Google Home app.