Quality: Excellent. Studs, cable and volume control also in daily use in the 2nd year still properly. The sound is also very good if you would just listen to some of it really. I do not know if my ears are so oddly shaped, but for me the earplugs one bad design. To discover the full sound experience, you have to keep the plugs all the time in position (the road somehow annoying), otherwise it slip instantly and although you can still hear music, but this sound rich and 99Cent headphones. I would not buy me one more time.
