Summary: These will provide very good isolation if you get the correct fit. I managed to do this by trying out all the tips affered. As others have noted, the is a little bit of distortion on the highs, which I've noticed slightly affects the vocals. The bass on these is really good, altough it fortunately doesn't drown the rest of the sound, which makes them a little balanced to my ears. Overall good value.
Summary: I really like these earbuds. they are a huge step up from the crappy skullcandys that I bought a few years ago. They are a little bass heavy, but that doesn't bother me. I love the in line controls, they come in really useful. I didn't rate the mic, though, because I don't use it. They work great for me and I think anyone would enjoy listening to them.
Pros: Sound Quality, bass in particular, in line iphone controls
Cons: can be a little uncomfortable after a long time (2+ hrs)
Summary: These were the last in-ear headphones I bought before I decided that I just can use them without feeling like my head is in a vice. That being said, these were the most comfortable vice-like in-ears that I found. Klipsch always prices their products very well and these were no exception, the sound quality for a pair of sub $100 headphones is superb. They were very good at isolating sound as is the way of most in-ear headphones since they're pretty much ear plugs.
Pros: Price, bass, ipod controlls
Cons: cannot be worn for long periods of time, missing treble
Summary: I got these about 7 months ago and I use them to listen at work. I have a very borring job and these really help to brighten my day. The mids and highs are gorgeous. The bass is good too but I would not reccommend them to a person who oppsesses about bass. The ear bud tips are klipsch signature but I would say they need improvement because I have to take them out of my ears often. They are amazing for the price and I loved them while they lasted.
Summary: *Note I did not purchase the one with the microphone
Right after I got my Beats Studio stolen, I decided to get a temporary pair of headphones while I get better ones and these seem to be great for that. They come in a tin carrying case (somewhat cheap) and come with medium, large and medium double flanged tips.
Pros: Above average bass response, price is just right, great isolation, lightweight, overal clarity
Cons: The treble may sound fuzzy, to me it did, cheap carrying case,
Summary: For $100, I am completely satisfied with the earbud's comfort and fit in my ears (guarantee one of the three sizes will fit), the sound quality (compared to so many headphones at the $200 range, including Beats by Dr. Dre at ~$300), and the controls (now I use the Galaxy S2, only the middle button works).
Summary: Let me just start of by saying these headphones are great (for the price). They fit well which is rare for my odd ears and really have excellent noise isolation. Again for the price range.
My one complaint is quality. These are not something for a commuter or jogger etc. These will break if you don't hold them in silk case carried by a man who can't move. The first one I got shipped broken. Left ear did not work at all and the microphone button didn't work.
Summary: I bought these alongside the UE500, with the intent of keeping the one I liked and returning the other one. Auditioning through a stereo, the S4s were a little less lively and smooth than the UEs, and tended towards some fairly bad sibilance, especially on classical tracks with high violin parts that were almost painful to listen to. I liked the UEs better, and returned these.
Pros: Very comfortable, easy-to-use, consumer sound
Cons: Tends towards sibilance, better options for the price
Summary: I got these after I put my UE Super Fi-4s in the wash and I couldn't handle my cx-300iis not fitting quite right anymore.
The newer version has a straight plug, and a decently thick cable, which hasn't tangled, but it is quite bent fro being wrapped up. However, where the cable goes into the housing of the earphone, there is a slightly thicker part that wraps around, which has cracked after 6 months, and it sort of scares me.