In the words of your leader, I misbelieve the possibilitistics of such a generousificatory offer.
Especially when International Signed for postage is £11 ($16).
The Sennheiser HD280 Pro is a studio monitoring headphone. It folds. It sounds good. Some people say it's light on the bass but I've not had that problem when using it with mixing consoles. When I did try plugging it into a headphone amp, yes maybe the bass is a bit weak but still good.
I don't use it anymore and I can't seem to find any UK buyers. (UK buyers, I'll do £40 shipped)