The in-ear rubber there in various sizes and of course therefore fit well. Perhaps too good - at the very beginning I was almost run over a cyclist, because I did not hear him. The insulation can compare well with earplugs in my opinion. That's great if you want to hear any other noises, and also the sound benefits from - but also dangerous if you are so out on the town, jogs or similar. Therefore probably get the "body noises" which many call the negative reviews - including the clatter of cables to each other or something. I myself realize that but almost not at all, or it does not bother me.
The insulation can be a flat rate but not bad rate, it all depends on whether you want the plan, or what you use the headphones. Mind you I had other in-ear headphones, in which the sound was not as strong.
Otherwise, the headphones a little more valuable than the same act-priced competitors that I had. They are also quite small and not too bulky. However, the cables are also very soft; they verkuddeln faster. Also the bend protection on the handset is (clearly visible in the picture) is not really stiff and stable, but similar soft. That is why I feel that these headphones will suffer a cable break-death (yes apparently the leading cause of death for those headphones) - that I draw from a star. I can still be wrong, then I change like my vote to that effect.
Conclusion: You should know if you want to have as strong soundproof headphones - I personally do not regret my purchase.
