no, it's not bluetooth, but a 3.5mm plug.

it's just like the handsfree included with any n800, but it has 5 buttons instead of one.
on the original one, the button (always located at the microphone) was only seen by skype, and responded as a hang-up signal.
neither of the 5 buttons i now have is seen by any program (except one; seen by skype with the same effect).

so basicly, it's a 3.5mm plug, separated into 4 sections (ground, left/right earphone, microphone)- those are the metallic separations on the plug itself.

any clue how to set this up?

thanks

ilia