A remix of https://www.thingiverse.com/thing:4741285 to add a proper headphone jack hole. I own the “Linsoul KZ ZS10” headphones, with the microphone; this model and the hole placement for the headphone jack work with this model in mind. YMMV. I have to wind up the headphones beginning first with the insertion of the headphone jack into the hole, and then winding up the rest of the cord, finishing with the earbuds themselves, but otherwise this works perfectly.
Printed on its base, in PLA, using default settings without any supports: no issues.
The author hasn't provided the model origin yet.