4 BRILLIANT Bass and overall sound.scarletpuss | 10/12/2013 | See all scarletpuss's reviews (1)I bought these for my new Kindle Fire HDX 7. The sound quality is superb. Bass is outstanding. They come with 3 different ear fittings another jack and a lovely small, silk bag - ideal to protect them when travelling. They also have a microphone. My only niggle is that they are a bit awkward to fit as they seem to go in backwards. Once you get used to that they are very comfortable and stay in place; they do not fall out.