I just bought a pair and air tested on my tesoro silver Umax.they look and sound like decent quality.
I do not want to touch my xlt because the fever will set in and not a good idea with the snow piling
outside.
I tried talking to the guy that makes ratphones a year ago about a single cup.long story short he did
not see a market for it.
when I field test them I will post here,but I see that there comfort and build is good for the money.