The PMX 100s are a great portable headphone, offering reasonably balanced and exceptionally detailed sound.

The E500s are the best pair of IEMs we've looked at. They combine incredible sound with excellent comfort and the nifty built in microphone

If you're after a high end pair of IEMs, you will be hard pressed to find better than the Ultimate Ears Triple.Fis. Their sound signature is more detailed and less bass heavy than their main competitor, the Shure E500s, but they are every bit as impressive.