I use it almost since it came out to cost the MD.

which is very well is that we are world cup (a little dangerous when you cross the street )
In the train or metro is really good: no need to put his background to hear the music.
Outdoor noise are atnus so we can be "in" his music longer without trashing the esgourdes!

A product of quality as always with Koss with his exellent

Soon to be a bit expensive for this type of product but with the quality there is nothing wrong ... guaranteed "life" ... Koss what.