The clips are attached to the size-adjustment band of the headphones and ears are press-fitted onto them. This makes it easy to switch to ears in different colors. (or to detach them when you enter cat-unfriendly spaces or want to store them in their case)
Included are clips for the following models:
If you have created clips for different models or have confirmed them working on models not listed here feel free to reach out so they can be added to the list.
Original model created by vidister and uploaded here with permission
The author remixed this model.