These in-ear headphones were bought mainly for outdoor use, and train rides. Since I am a student at a music college in the field of composition / electroacoustics, I have very high demands with regard to the sound - unfortunately I had this much to non-linear. You really feel (with AKG K 702 compared) as if the depths to 100 Hz and the heights from 10-12 kHz at least 6-8 dB were (probably at heights more) raised. This could be reasonably achieved by the EQ and SRS WOW my old iRivers, but absolute KO came from the design. While jogging and riding a bike and in a windy environment, unfortunately, was not much of listening to music, because the airflow noise was perceived in the small slot above the membrane extremely loud. Thus, an undisturbed listening to music without cap Oden Hooded just was not possible. So whoever wants to use it exclusively in the room as well as music of the bass and treble-heavy styles of music, so can be quite happy. But who is often out and is mainly instrumental and just in the middle frequency range richer music, should rather leave it alone. One thing I must emphasize but positive - sitting perfectly in the ear!
