Probably better for bigger ears,
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This review is from: Sony MDR-J10L Over Ear Clip Style Headphones (Electronics)
I bought these after reading the reviews as I was hoping to replace a trusty old pair of Pansonic wrap earphones that have faithfully accompanied me to the gym for years.
However... these are just far too big for me, and I feel must be intended for a male ear. The hooks are solid and not adjustable (though quite and easy to slip on because of this) so unless your ear is just the right size you will be suffering.
The angle of hook to lug is also at odds - by pushing the hook flat to your head (most comfortable and secure), the speaker lug is really irritating, and equally positioning the lug nicely (which is quite cumbersome), means that the hook protrudes oddly behind your ear.
The sound quality was not as I expected from Sony either. Though quite clear, there was no bass at all, and the volume needed to be turned right up (compared to using Sony Mid-Range In-Ear Headphones with Deep Bass for iPod, iPhone, MP3 and Smartphone - White , which although made for bass delivery are miles apart on volume and range as well).
Bottom line, if you have slightly larger ears, and need a robust and functional pair of headphones, these will be fine. If you're after great sound and/or have smaller ears, these are not the ones for you.