When first trying out the headphones, I was pleasantly surprised. Before I bought the article, I've also read some reviews. Some were very good, some rather bad. Especially as far as the sound. I have to say that I have a lot of not very idea. Anyway, while listening to it have a very pleasant sound and the bass are really great.
I really have to say that they are good really when you OD in the City, the U. S-Bahn has to. Also worth mentioning is that you can fold them together when they are studied not need or want to stow away in your pocket.
The only small negative I have is the following: after extended wear (1-1,5h eg the train) they start to push a little to but if you then easily moved or decreases briefly, then goes the back.
Conclusion: For the money you get real good workmanship and quality. I am really happy!