If you can find a microphone that connects to a speaker over Bluetooth or AirPlay, I don’t see why it wouldn’t work with the Move.
I know there are iOS apps that allow you to use your iPhone as a microphone and send the audio over Bluetooth or AirPlay. You might consider testing those out.
Thanks for the idea GS! I found Microphone Live. Seems like the only one. Some flaky reviews but worth a try!
I think the audio delay will kill this idea, but by all means try it out first if it doesn’t cost anything.
Perhaps Sonos could contact RODE microphones to work out a solution so you can connect a Rode Wireless Go II to a (pair of) Sonos Move(s) - either through the USB-C port on both devices, or by using Rode Central or the Sonos app to connect a system via Bluetooth.
Allowing for this would really revolutionize the way people use these affordable solutions for doing talks in small set-ups (e.g. an office gathering, wedding ceremony or a funeral).