Tested: AKG K391 NC Headphones
The term "noise canceling headphones" almost always summons images of big puffy over-the-ear numbers. As wonderful as those can be, they're bulky to pack if you're traveling light, and during workouts, they suck -- providing a feeling akin to sweating with scones strapped to your head. Austrian headphone maker AKG's K391 NC offer up noise canceling features in a compact package. We tried out a pair.