Questions about Sonos Roam SL

Basically, the Ikea Symfonisk are normal Sonos speakers, so integration with other Sonos speakers is no problem. However, a Sonos Boost may be necessary to use all the features (but I don't know exactly). I have a Sonos Five, an Ikea Symfonisk and two Roam with a Boost in my network and it works fine.

If the old speaker at least supports the S2 controller, it should be possible to operate the speakers together without any problems. However, it would be new to me that the Roam SL could play Bluetooth sources into the Sonos system. It is either a Sonos buddy and plays with the others or it plays a Bluetooth source.

Sonos Roam has built-in microphones for Voice Assistant.

Unfortunately, we do not have the desired power supply unit in our range and cannot currently obtain it from any of our suppliers.