i just wanted to add this review as to share my knowledge of this product with those who might not have quite got the hang of it yet. ive given it 4 stars cause right now im on my 3rd set of earphones and seem to go through them at the rate of 1 set a year which i dont really think is that bad because i swim a lot (probably 4+ hours a week). Firstly you need to use the additional ringed earbuds of the correct size for you to create the airtight seal necessary for good sound quality. secondly u cant be to shy when putting these buds in your ear and should treat them more as if they are swimming ear plugs, not regular headphones. Thirdly a piece of advice for the more rapid swimmers out there: i use two strap goggles and use the free strap which doesnt have the mp3 on it to go over my ears securing the phones in place. i do this because i found that the phones can become dislodged when tumbling of doing fly. I have hardly any problems using this product as stated above and can swim for hours without having to fiddle about with it, although initially it did take some getting used to!