The MP3 player keeps what it promises. It is waterproof, which is the most important thing. The headphones are relatively cheap made and sometimes have a "wobble" - sometimes only right, sometimes only left, sometimes very quiet ... I don't think you can expect more for the price. Personally, I don't care about the sound quality when I swim - I still hear less because of the bubbles. It's enough for me that my brain is being distracted.