"Thou gettest what thou payest for..."2.0 starson by urr_quasdim
Pros: noise cancelling effective, fits nicely in ear, unit small and light
Cons: sounds like you are in a cave: booming bass and practically non-existent trebble
Summary: Ear buds usually suffer from insufficient bass output. Not these: here you get a cavernous, booming bass with next to no high frequency output. Even boosting highs and un-boosting lows with a user-controlled equalizer doesn't do much; the trebble is still paper thin. Shame, because the noise-cancellation does work quite well, I can tell a substantial difference in road racket with and without the unit activated. Alas, sound quality is sub-par. I guess maybe that is the reason for the relatively low price.Updated
Since the original opinion I've tested this product with the iPod Nano (2G). When setting equalization to "Treble Booster" the sound was better than with any manual EQ I tried, using other players. The treble is still somewhat subdued but decent enough. I am sure the same will hold true using the iPod 5G. Thus I "upgrade" my previous rating from 4 to 6.Updated
Since my original Opinion I tried this product with a 2G iPod Nano. When setting equalization to "Treble Booster" I experienced improved treble - considerably better than with all the manual EQ settings I experimented with, using a variety of players. I am sure this "discovery" also holds true for the 5G iPod (and, perhaps, for other players). The high frequency is still a bit "thin" but acceptable even for long listening. I therefore "upgrade" my original rating from 4 to 6.