You can not use a controller that is running on the hotspot device, it needs to be a separate device. Your desktop, connected to that same hotspot, would work great. 

Any Sonos speaker, connected via WiFi, runs the same software, so the only difference between the Roam and the One at that point is the ability to send a Bluetooth signal to the Roam, which can then be sent throughout all other Sonos speakers via WiFi. The One has no ability to receive Bluetooth directly. 

 

Hi @AVieira 

@Airgetlam is correct, though you would not be able to set up a Sonos system with a desktop computer, only control it. For setup of the system, or configuration of it, you’d need an additional Android or iOS device connected to the hotspot, though setup of sharing your desktop’s music folder is best done from the Sonos app on the desktop device.

Hotspots are unsupported, however, so there are no promises it will work; it could even depend on your particular mobile\cellular provider and what tethering options they allow.

Just wanted to add that there is also voice and the hard buttons on the speakers available for control.  These options feel a bit more useful when you’re phone can’t be used for control because it’s doing hotspot duties.