Polk Ultrafit 3000 Sports Headphone Review: Sweet Sound, Great Fit

A pair of exercise earbuds has to do more than just muffle the sound of your labored breathing. They need to be durable and sweat-proof, they need to stay in place when jostled, and they need to sound great. Of all the pairs we've taken out running, the Polk Audio Ultrafit 3000 might be the best buds yet. » 9/26/12 3:40pm 9/26/12 3:40pm