Sadly Genos does not have Bluetooth.
But I know that using the Yamaha Chord Tracker app on my Android mobile, I can cast audio via WiFi to the Genos WLAN so that it plays through the Genos speakers. But it only works for standalone music files on the device through that app (e.g. wav, mp3). It doesn't work for e.g. streaming from Spotify, which does not see the Genos as WiFi speakers.
Does anyone know if it's possible to stream any audio you like (e.g. Spotify) from Android to the Genos via WiFi? (And specifically Android using WiFi).