foone🏳️‍⚧️さんのイラストまとめ

There are Cochlear implants which have bluetooth support. You can just pair your implant to your phone.

And the picture, uploaded to Danbooboo 14 years ago, is I think one of the initiating images.
This is what set my friend off on their Quest.

(Amusingly, this image was uploaded by another friend of mine from the same IRC channel)

One solution is apparently "put them on upside down"

and another catgirl having to adapt human-style headphones to work on cat ears

And it's unisex too.
There are catboys wearing headphones, too!

(and by catboys I mean Kagamine Len. They're all Kagamine Len)

And here's an example of one that's clearly been designed for catgirls.
It's a sort of headband with pop-up speakers

And here's a catgirl trying and failing to use human-style headphones on cat ears

Ahh, yes, earbuds.

in your human ears.
The ones you have in addition to the cat ears.