I needed to mount my TrackIR head-tracker to my HyperX CloudII headset but to do that I needed a coupler for connecting the reflector to the headstrap.

I wanted something that didn't damage the headband and was removable so I came up with this clamp.

The clamp is ambidexterous so you can use it on either side (or both)

It uses 2 M3 screws, 12mm long.