I was looking for non-intrusive headphones as those with a tip siliconne that "glue" the eardrum, which I find unpleasant. This is of headphones with foam ear cups that take very easily and with great comfort. However, I use them without moving so I can not judge on use in motion ... The quality of sound, my surprise was great. The previous version Sennheiser MX375 already had a good reputation. Here I found probably the best quality / price ratio in terms of sound. A real concentration of technology in headphones that seem mundane in appearance yet. The bass is really impressive, the same level as high-quality as the Koss headphones. Do not hesitate to adjust the equalizer from the employee if possible device because it is disturbing to have such low made in such small earphones. The midrange and treble are not outdone, the clarity of sound is really excellent at all frequency levels. Finally, the noise level is very good, the sound does not protrude at all outside and they isolate properly, neither more nor less. A buy eyes closed!
