I wholeheartedly agree with D.Kraft. These are HORRIBLE. There is absolutely no bass, and I mean NO BASS at all. I thought there was something wrong with my Sandisk so I plugged in the OEMs but they worked fine. Tried the foam inserts and they didn't help a bit. I already had the EQ set up for maximum bass. I never minded the sound quality of the earbuds that came with the unit, was just bothered by the wind noise while cycling, so was looking for something quieter but with better overall response so I could enjoy the music at a lower volume and still be happy. These are not the answer, I can assure you. I don't know what the reviewer at the top spotlight review was using before these but they must have been pretty awful. Or he works for Etymotic. Personally, I think his review is "hogwash". But that's just my personal experience. You may take it for what it's worth, I suppose.