I'm not a person who complains about much, but these are a serious disappointment. They have very little sound and less bass. The original cheapy earbuds that came with my MP3 player are MUCH better sounding than these things.After all the good reviews I was expecting to be quite pleased. I tried all three differenct sizes and got them to fit properly. That is a nice option having choices. But even the best fitting arrangement is not up to snuff. Back in the package these go. What a waste.