At $350, Bose's comparatively expensive QC35II headphones aren't for everyone, especially if all you want is a simple, good pair of Bluetooth headphones. But Bose's Quiet Comfort headphones come with noise cancelling, and Bose is usually the best at drowning out unwanted ambient noise. If you're in the market for noise cancelling headphones, the QC35II should certainly be near the top of your shortlist. They deliver premium audio quality, but they may disappoint those who favor bass-heavy music.