So that just clips onto your headphones?Have you checked out ed-trackers? Good alternative and a lot cheaper
http://www.edtracker.co.uk/shop/my-basket/edtracker-pro
Which version is it? TrackIR 4 or 5?I also have one, with a Trackclip Pro, but the trackclip is broken, but still works if you use a small piece of electric tape. Those Trackclips are also sold seperately.
The unit is only used a few times.
The clip is broken because he has long been in a drawer located with other stuff. The wires are not damaged.
Because of this you may have it for 50 euro's plus shipping.
Version 5.Which version is it? TrackIR 4 or 5?