My headband snaped⦠I was a sad boy
but when I started researching for a replacement, I noticed something
opening the headphones (I personally like using the flat screwdriver in the side method, so you donāt rip the pads out)
the headband is held down by this pin, so I tried removing by pinching it with tweezers
they became this:
that little hole, is where the pin holds down the headphones with the head band toguether.
first I thought maybe I could mold some wire to hook them and use that. but then I stumble into other people using the parts express headband with other koss headphones. I thought even if the kph30i doesnāt have the thing that hooks into them, the thing it hooks into might pass thro the hole and I can glue it on the other side
it doesnāt 
Butā¦
you can kinda use it to hold them in your ears, it sits above the hole and keeps it in place just enough, you can move around and stuff, it feels so nice, they are soooo light now, even lighter than before
if you are the type of guy that didnāt like the clap, of the original headband, I suggest you give this a try
is not grate, and kind of a pain to put in your head every time, but it works, kinda
Sooooā¦
thats why im posting here, im hopping we could print a new version of the little clip that goes into the hole, and could clip into the parts express headband
but I donāt have a 3d printer, nor the modeling expertise to do that, it doesent sound too complicated (pls correct me too delucional)