A generic headphone wall mount for acoustic wall panels.

In the picture, you see the Acoustic Wood Wall Panel bought in the Netherlands. I can't guarantee that it will fit panels made in different parts of the world. The size between the slats is approximately 13mm, and the slats are approximately 13mm thick. The diameter of the cylinder is 13mm, and it is 13mm long.

Print it, insert it between the slats, and twist it. It is snug enough to stay in place and won't sag or shift down.

The slats are stapled to the backplate, so you can't place it everywhere on the wall panel. You need a bit of room to push back the backplate.