This is a case design for corded iPhone style headphones. I needed something to keep my cat from running off with my headphones (anything sting-like belongs to him under some obscure cat law)
It’s a pretty simple two piece design.
I recommend building one in cardboard to make sure your particular headphones fit. My final was in .12 birch ply. Adjust as needed.
And because someone will ask: I find the wireless “airpods” to be an audio engineering hate crime. They are acoustically harsh, never fully charged when I actually need them and intrinsically designed to occupy a landfill in less than 2 years. –end rant
Anyway, enjoy the file.