Sonos Roam Manual page 4

Microphone
Press to turn the
microphone on or off:
When the microphone
light is on, voice
control and
microphone-dependent
features like auto
Trueplay are available.
When the light is off,
voice control and
microphone-dependent
features like auto
Trueplay are
unavailable.
Note: If you set up a voice
service and the
microphone is off, you can
still use voice commands.
Just press and hold
no need to start with a
wake word. When you
release the microphone
button, voice control turns
off again.
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