I have the CSL bought 610 earphones due to the positive reviews and the low price due and was not disappointed. The earphones look good and fit perfectly in my ears. Expresses nothing even after prolonged use. In order to adapt the set contains different rubber articles, which with me the standard parts have passed. The cable length is generous, what perhaps may disturb one or the other - I think it's rather good. The build quality is measured by the price very good, over the durability after a few days I can not say anything yet. The sound quality is in the price range up to about 30 really very good. The basses are contoured and have even without EQ use for my taste the right punch. The heights are pleasant and not flashy. Even in the middle there's no blaring or squeaking shares. So overall a balanced sound, the course lacks the last transparency of a really expensive headphones. But we also talk about a product 12.
For jogging, cycling, etc. I would not necessarily recommend the earphones, as they yet damp ziehmlich strong ambient noise - dangerous on the road. I see this as a weakness, however, not the product, but is due to design similar in all ear introductory listeners.
It should be noted that the earphone is packaged only in a simple plastic bag. A transportation or storage is not at (bothers me now is not on).
In my view, really recommendable! I'm going to buy me again as a substitute.
