Summary: The earphones have good sound quality (Missing some treble), so you might have to tweak using the phone. This is not for sports, as the physical equalizer is always falling, and it becomes messy if you are using shirt and jacket. I would love this earset if it didn't have the equalizer. Price is ok, but i wouldn't pick the same pair again.
Summary: I purchased these to use on flights to New Zealand (26 hours each way). I was a little sceptical at first and when I tried these out at home even more so, however once we were in the air they were great. The isolation from the ear bud was really good and then when enabling the noise cancellation, you could hardly hear the roar of the engines! Made the journeys much more bearable - well worth it.
Summary: Don't be put off by the bad reviews, if you are looking for a pair of good quality noise cancelling earphones then you can't go wrong with these. I found the the noise cancellation very effective on a recent long haul flight, in fact the drawback was that I started to notice the engine noise even more when I took them off, and the sound quality is very good.
Summary: Not cheap - although now down in price from what I paid by about 25% - but I would say that anyone who suggests that they fail to deliver does not understand their purpose. By combining a degree of sound isolation with electronically inhibited low frequencies they certainly worked for me on two Trans-Atlantic flights, hearing the degree of fade of the engine noise when the cancellation was switched on was very reassuring. For the price - full marks.
Summary: Only works with constant background noise, ie travelling by train or flying, not very good at cancelling road noise when travelling by car. I bought them for train travel and flying, they do a good job for both.
Summary: The earbuds have an ok sound quality, but, the noise cancelling is a joke -- the effect of turning on the noise cancellation is minimal at best. Why bother calling them anything but a half-way decent sounding earphone. I don't think much of the comfort either. Its a lot of money for a lot of hype.