Summary: I purchased these headphones for working out, biking, and running. They fit the bill perfectly. They are secure and comfortable. The sound quality is excellent. A previous reviewer complained that the small nubs that fit in your ear are hard and uncomfortable. After reading that review I almost decided not to make this purchase. I'm glad I ignored that review. In fact, the nubs are soft and almost unnoticeable when you are wearing them.
Summary: I found that these headphones were durable, and the sound was good. As I think the in-ear headphones are for idiots who want to go deaf, it feels a little odd - and likely unhealthy in the long term - to have the rubber bud shoved right into your ear, though. I have one major complaint, which in itself would make my review a one-star: they STINK after a while. STINK. Why? The rubber bud in your ear collects sweat.
Summary: I'm ordering a third pair to back up the pairs my girlfriend and I have used for the past several years. They work PERFECTLY with Droid. Smartphones are stupidly designed as telephones, but if you simply use these Sonys you will get a) better reception (like an antenna) and b) great sound without having to hold the damned thing to your head. I simply use the phone as a hand-held mic while listening via the Sonys.
Summary: I gave this a 4 instead of 5 star, because after reading some other reviews, I see the problem I have with them is quite common. I have been using mine off and on at the gym for 3 or 4 years now. Today, I started losing some sound in the left ear. After reading other reviews, I can see this is a common issue. However, getting almost 4 years of service out of them isnt bad. The sound is as good as anything else I have ever used. The only other draw back is the short cord.
Summary: Admittedly, I have a pinhead. But these headphones not only do not stay in place, the little nubby things that are supposed to hold them on your ears become painful after a short time wearing them. Whether cycling (I know, not supposed to wear headphones on a bike), running, or even walking, I am constantly adjusting these puppies, and still, they make my ears ache. Then there's the strange little case that doesn't really do much to store or protect them.
Summary: I have slightly larger than normal ears, and so standard earbuds never fit my ears, hence my penchant for behind the head headphones for durability with my workouts and walking to the office. I think these headphones have some really good features that really work - sweat resistant foam, a cord that can be short or long for armband use versus keeping your device in your pocket, and even a neat carrying case, respectable sound quality, but if the earbud things don't fit...
Summary: Nice looking, good sound, If u cant see it, there are nubs (kind of like earbuds but not soft at all) on the inner part of the speakers that protrude and stick into yur earhole. Great for sound, bad for comfort. if the nubs were soft, would be a really nice headphone. if u have big earholes,... might be right for you. still love the sleek design.