IIRC when I looked at them last, it looked like I could probably pop
the contents out of the cups, but one cup would be trapped on the cable
unless I desoldered one end. I was thinking of maybe popping them out,
At least i the set I have (somewhere), the cable _between_ the cups
unplugs form one end, I think the mouthpiece (speaker) end. I also seem
to remember that the cable to the M100 is plugged into the PCB in the
earpiece (microphone) cup, so that actually it will come apart without
desoldering.
-tony