Don't be fooled by the cosmetic similarity to Sony's ear-clip headphones. These have none of the adjustability and comfort of Sony's. Instead of a spring-loaded ear-clip, minor adjustments are facilitated by a sliding post. I don't have unusually large ears or anything; I'm a male of very average build, 5'11', and the size of my ears is proportionate. When I wear these headphones, the speakers dangle loosely at the TOP of my ear, several centimeters above my "earhole." These headphones are very uncomfortable to wear and the sound quality is nothing special. Thumbs down. I resent the fact that I can't return these without paying half their value in shipping charges.