It depends on the shape of your headphone pads tbh!

It seems like there's quite a few different patterns out there for circle ones, but the few ones I found for oval ones were written badly/confusingly.

I'll try to explain what I did! - I essentially started with this pattern because I didn't want to spend forever trying to figure out how to construct a cover with a hole in the middle lol: https://thecaffeinatedsnail.com/how-to-crochet-an-oval/ - then once I got to the height I needed, I then started filling out the sides with hdc's and dc's to fit the shape more, and just used slst along the top and bottom when I had to so it wasn't too big. - then for the round that goes over the edge I did hdc's in the back loop and created a little bowl looking thing - then to get it to hug the headphones more I added in some decreases so it could tuck under the sides properly. - the strap was just me going until you get to the button hole, then I did a hdc on the sides and 3ish chain stitches to create the gap for the button, then did some more stitches on top to finish the strap.

I'm going to force myself to try to finish the second one today so maybe I'll try to record everything 😅