Of the big names Sony I have promised much more, but from day one I have only problems with the silicone earplugs fly churning out of your ears, you just have to push with force so do your ears hurt, then again the same. You only have no end of trouble with it. The sound itself is not just the very best, only moderately. In other words, nothing a waste of money, I would have the same apart from the competition (Samsung, Acer, Huawei) bought something good instead of a Gammel of Sony. This really is the very last and friend since the reigns of Sony can daydream by day and by night. Really a shame about the love of money, because the quality of the article is wrong from behind and from the front. Sad but true!