How to Output Your Mac's Audio to Two Pairs of Headphones at the Same Time
https://www.macrumors.com/how-to/output-mac-audio-two-pairs-headphones/
In the aftermath of Judgment Day, we fled to the Exclusion Zone and sought refuge underground. This is what is left of our fallen civilization.
How to Output Your Mac's Audio to Two Pairs of Headphones at the Same Time
https://www.macrumors.com/how-to/output-mac-audio-two-pairs-headphones/