“Hey Siri” on your Mac

On your MacBook Pro with the Touch Bar (mid-2018 model or later), Siri is now available whenever you say “Hey Siri” and immediately speak your request (your MacBook Pro lid must be open). Play music, set up a meeting, open a file, and more by using your voice. You can enable the “Listen for ‘Hey Siri’” option in the Siri pane of System Preferences. See Siri on your Mac.