Pros: Detailed sound
Cons: A little bit thin
I actually got these on sale for less than $10, so thanks to the guy who probably didn't print the price correctly. Anyway, these earphones use a fairly large dynamic driver, which you listen to from the side. This improves bass, which is very detailed and well extended, and the treble too is very crisp...almost to the point of being fatiguing.
For $10 these are a bargain, but their retail of about $75 is far more realistic. As with most Sony, the higher the model the more detailed they usually are, so if you don't need the aluminium trim and the leather case, a cheaper pair might have a darker, more engaging sound. They are somewhat analytical to listen to.