I have read in professionals of this earphone and purchased subsequently. The sound quality is really great. But unfortunately, after about 3 months left ear piece was a loose connection. Initially, I was able to print cable a bit inwards and it works again. But eventually threw out. Individual case, I thought. I was very happy with the sound quality so I bought a second. And unfortunately, same story. And strangely enough, again the left earpiece. A real shame. Are the Chinese copies, perhaps? I would have to buy it in stores ...
