Fit:
The fit is perfect with the correct size rubber stopper. Although the earloop need not necessarily be mounted, the contents with the ear mount is however better many times. Even while jogging they stay on and in the ears. Since the strap can be mounted individually, they fit all ears.
Since cable and earphones are very light, you can wear the headset for hours, without being uncomfortable.
Sound:
The sound is very clear. The highs and mids are very clear preference is however given to the bass. Even without reinforcing settings on the player, he roars in your ears.
The absolute volume is not very high. To me she is indeed too loud, but there are other headphones that are even noisier.
During a telephone conversation, the earplugs should deeply stuck in the ears, otherwise the comparison is somewhat quiet in a noisy environment.
Conclusion:
A headset that features a top sound and equipment for its low price. Therefore, from my full 5 stars.