Sennheiser  RS-65 Wireless RF Circumaural Headphones with SRS Surround Sound Processor (Black)
Terrible, but one of the best
I have been going through wireless headphones like kleenex, trying to get it right.  900 Mhz technology is just not good enough. But these Sennheisers were overall the least noisy.  I ended up buying the Amphony 2.4 Ghz too, which are almost totally quiet, unless a stray wave comes from somewhere and then prepare to have your head blown off.  And definitely don't try to run the microwave while wearing the Amphonies!  And you can't go into another room with the Amphonies.  But if you sit very still right in front of the TV they're the best.  What I was doing was switching to the RS-65s everytime I wanted to get up or run the microwave and it worked out pretty well for awhile, but then the stupid cheapo design of these Sennheisers the earcup broke off!  I fought with it for awhile, with one earcup dangling down, but it was ridiculous.  I just tried the Acoustic Research headphones and they were a complete joke.  So, I guess I'll probably order another pair of these junky things and try to be careful with the earcup.