Shure's E500-PTH earbuds "a new paradigm"

You know how we roll, we're all about the new paradigms, and Shure is tooting their own "new paradigm" horn with their new E500 Sound Isolating Earphones we saw at CES. They rock a "Push-to-Hear" function that switches from noise cancelling to a microphone of what is going on around you, and pack a triple-driver punch (one tweeter and two woofers) into the in-ear canalphones. Of course all this paradigm shifting don't come cheap; the E500-PTH goes for $500, while the PTH accessory can be purchased alone for $60. Should be available in May.