Well, i personally don't have one
but i know sennheiser users who give good feedback to me
i personally want to get their wireless headphones too, just want
to save up for it now. haha
however, i just feel tied down by being wireless i am dependant on
the batteires and i suck at maintaining batteries. ahha
but you should note if you have wireless router at home... there
will be interference.
heck, the routers causes static even on my wired phones. haha.