The headset was a Christmas present for my wife, so that they can listen to music throughout the house undisturbed and make calls via VoIP. Unfortunately, this device has been developed apparently without any experience in Kopfhörerbau. The "bracket" ensures that the shells rest never really on the ears and also slip continuously from the head. The sound quality is also not great - for headphones in this price range I would have expected more (of course, Bluetooth is, but then the producers would have rather spent 5-10 euros more and better quality taken). It's fairly well if one presses the shells with both hands on his ears and turning up the volume too much. I can not say anything because the device could be worn with me never long enough over the term. Conclusion: My unit goes back to Amazon, and I advise anyone: Stay away! j