Great frequency response, sensitivity, base boost and they fit into my ears comfortably. I love how I can hear every layer of the music, crystal clear! When I first used them I was amazed because I heard layers to the songs that I didn't even know were th
One small con. The rubber pieces that fit into your ear canal tend to get clogged with wax and dead skin, The design is such that it is difficult to clean the junk out. Its gross but it needed to be stated.
A Very Good Product. Price is reasonable.