Pros: I have done a lot of research and bought a lot of earbud headphones. These seem to be the perfect balance of great sound and comfort for working out. The sound is amazing. Crisp highs and mids and pronounced lows. The flat tangle-free cord works perfectly. I wad them up and throw them in my pocket just like everyone else does, and unlike all the other buds Ive owned, these aren't a birds nest when I pull them out. The fit is the real pinnacle of these buds. It does take some time to figure out which tips will work best for your ears, but once you do, its worth it. These earbuds will not come out with even the most strenuous of activities. They are also very lightweight so you can wear them for very long periods of time. Since the cord is flat and thick, you are less likely to catch it on anything, therefore eliminating those times when you suddenly feel a pull on your ears.

Cons: I have read reviews about the iphone controls giving out easily, but that is not a function I use and therefore I can not properly evaluate that feature. But, if you are looking for a great set of buds and the iphone controls are not important, then I highly recommend these!