While finding a good set of headphones is very difficult, finding good set of noise-canceling headphones is even more difficult. I’ve had experience with the Bose Quiet Comfort and the Sony MDR-NC11 models, and neither were even worth reviewing. Sure, their sound quality was nice, but their noise-canceling technology (while innovative) was lousy. Is there a better choice? Enter the Sennheiser PXC 250. Read the review.