Summary: At nearly $300 you'd expect Bose's latest in-ear headphones to rock, and the QC20i doesn't disappoint
Pros: Incredible noise cancelling, Extremely comfortable, Amazing sound quality, Aware mode will keep you alive, iOS, Android and Windows models available, Works passively, Boasting amazing noise canceling technology and incredible sound, the QuietComfort 20 is also extremely comfortable. Additionally, we really liked "Aware Mode" and laud Bose for making versions compatible with every major mobile OS.
Cons: Expensive, Battery module is huge, While we were pleased with most everything about the QuietComfort 20s, it's hard to look past that $300 price tag. Also, the battery module is huge and in our tests it always felt weird. Do you let it hang out of your pocket or do you tuck it into your pocket? We've been using the QuietComfort 20s for weeks and we have yet to find a decent solution.