I'm on the road now but will see if I can find something to measure with.
I did very roughly (using the side of a notebook
) measure the section of cable from the remote to each earpiece and it was circa 27-28cm. From the centre part to the bottom of each remote must have been around 6-7cm. So double that, plus the size of the 2 remotes and the centre part. I'm guessing just short of a metre end to end.
If Bob doesn't get chance to give the exact measurements then I'll try and remember to measure when I get home at the end of the week.