Processing:
Processing is double-edged. On the one hand, everything is well fitted and so far (after approximately. 3 months use) are all parts still there where they belong. The strap can be bent well and thus terminals behind the ear.
However, the cable transitions for jack and the headphones themselves very unstable and I have stuck at the very beginning as a precaution with electrical tape. In addition, the cable thickness is very low and does not promise eternal life.
Another problem is that even after such a short period of use of the jack has light transmission problems and often work properly only by rotating.
Sound:
The sound is really not good. It is reasonably loud, but neither heights nor depths are well represented. Rather a Mittenbrei.
Conclusion:
Super cheap headphones, but can not do much. Is however to be expected at this price so. It is positive that he will not sit well in the ear, despite sweat and movement. Therefore, even the two star.