On the Language bar, click Microphone to turn it on.
Click Microphone again to turn it off.
Some headsets have a Mute button that allows you to turn your microphone on or off. The headset's Mute button overrides the button on the Language bar.
You can also say the command "microphone" to turn the microphone off.
Keyboard shortcut: Use +V to turn your microphone on or off.
Set up and configure your microphone
Practice using speech recognition