Everyone has to try this out. Buy these wondrous Bose QC2 headset and use them w/ your iPod or whatever musical output device you have and run. Just run until your music library runs out! It was amazing. I finally got to use the treadmill that came with my house and I used my G4 Titanium Powerbook as my iPod. (for those who don't know what that is, its a bigger and badder version of the iPod...it has a 15.4 inch screen!) Anyways, I just ran 1 mile, felt like I could do more and more and more...I stopped at 2 miles because I have to study, but by gawley gee, the sound is bolstering and energizing! Here they are in picture form and if you want to know more, just click on it and it will take you to Bose's website. They are not one bit overpriced. Trust me, its been almost a year since I've had them! Oh yeah, they cancel out the airplane jet noise too. This totally helps me when I'm on those long cross country commercial flights. :-)