I recently got a pair of Sennheiser CX300 sound-isolating earphones and really love em. They are another set of phones that I would recommend for people who are fed up with the cruddy sound quality and comfort that standard-issue iPod or Zune earbuds provide.
There are many positive qualities that the Sennheiser CX300 earphones possess. One is that these earphones have an ultra-comfortable in ear design that blocks out a majority of distracting background noise and are smaller than a lot of other in ear headphones. When sealed and fitted with the correctly sized ear pads, the sound isolation is pretty good and the bass response is terrific. Another thing I really like about these earphones is that they are very reasonably priced. With a MSRP of only $89.95 (although I found them at various online retailers for about half that) everyone with a portable MP3 player can now enjoy great sounding earphones that are comfortable to wear without breaking the bank.
Although I like the Sennheiser CX300 earphones, there are a few things that I can still gripe about. The cabling on the earphones is asymmetric (the left earphone cable is shorter than the right) and I find that a little annoying. They also don’t come with a carrying case. Yeah, I know that these are just little complaints (and maybe you won’t mind) but they both sorta bother me.
Overall, I think that the sound quality and fit of the earphones make them worth recommending. While these are by no means professional high-end earphones, they are a huge step up from the iconic little iPod earbuds. And at their price point the Sennheiser CX300 earphones are definitely a great value.