Perfect comfort, the mouthpiece allows the listener to remain secure in the ear without gene (comes in 3 different sizes). The earpiece does not fit fully into the ear. The consequences are that the sound isolation - in both directions - is low but that against-part sound is very airy. It is almost with open headphones on. The sound is very detailed. However the sound signature did not like (medium too far forward). I think the signature changes from one form to another ear of the listener since not be positioned exactly in the same way. With a good equalizer it should bend to your demands without flinching. I use it with a Sansa Clip + Rockboxé and Fiio E11. For the record I bought for the office instead of my Marshall Major headphones very discreet and not enough insulation. Since I do almost used. In comparison, the sound of the Marshall Major now seems too confined, sketchy and imprecise on percussive sounds such as snare drums and the music with many instruments.
