It was tested previously with:
HTC One X +
-> Top! Very good audio quality and the volume is also very good
Sony NWZ-E474
-> The volume is much quieter here than in the smartphone, otherwise no noise or similar Artifacts
Apple iPod Nano 4G
-> Volume significantly better than the Sony, but not quite as strong as in the HTC. Sound quality properly.
The quality of the material I find very high.
The processing I find very good.
I would recommend the cable previously without hesitation!