Property me the headset ordered because I was attracted by the playing time of 20h and the sound quality has been described as very good. In relevant test had also performed well. What really worked was super pairing via NFC. Also the pairing of my tabs as a secondary device no problem. So I can handle Multmiedia the tablet and the phone conversations. The tone, actually the most important thing is to surprise and clear with rich bass. My other headphones sound a bit dull after the fact. Andersrum the headset at the beginning of something bright. The question is, which one is accustomed. But I believe that the sound is very balanced. What definitely is true: It can adjust very very loud. The strap goes over the shirt but also underneath. He does not press on the neck, but is not so wide open that it falls down. All in all, for me a successful purchase. I can hear my music either with one or two ears. The sound is good. The game time Super. The optics have a looker. Oh ... While talking to is understandable but, according to some acquaintances of light. The interlocutors comes very clearly in the earphones. Is almost as if he were standing next to you. Focus is on me but on music, rather little phone. The device is processed dibasic. Made of plastic (piano lacquer optics). In the center of the arc welded well, or so. That's why I will not pull the straps as a precaution so extremely apart. Headphones are hardwired and not interchangeable. For me definitely ... Recommendation for long, wireless listening to music with option to call.