I bought a pair of these for me and the other half a few weeks ago but we have now gone our separate ways so I have one up for sale. It's complete and as new as it's only been used a handfull of times, I'll even include the box. They are about £160 in this country or a bit cheaper if you buy from the US like I did. Open to sensible offers.
http://www.senabluetooth.com/products/smh10.php?tab_menu=overview