How do Umamusume headphones and earphones work?

Sound probably leaks.

fwump

Ow...

If it's high pressure, it'll probably flatten the ears.

It's wired to use with music games.

Then what about canalphones?

If I face down, the cord flaps down on my face and gets in the way!!

Even for girls with ear piercings or other decorations, it won't get in the way!

Probably has a thing keeping it on around back?

Ooh! So easy to use!

From inside, it loops around back.

Why not make the housing bigger and clip it right on the ear?

With all the ear sizes, just how many would you even need?

Comm. Technique UMAPhones