I'm guessing you are using the app on a phone or tablet, if so as long as the device is connected to Sonos via Bluetooth, I'm assuming it has it as I've never had one, then you will be able to listen to it
It’s not Bluetooth, it’s via an app. Sonos only seems to play audio on a specific list of apps, like Spotify. Like a normal speaker, but worse.
If it's a newer Sonos speaker and you're using an Apple device then you can stream to it using AirPlay.
Just sorted mine so posting the link for any other sonos users https://support.sonos.com/s/article/1230?language=en_US