Life-changing! A friend let me try these while we were waiting to board a 16 hour flight and I immediately bought these so they'd be waiting when I returned. I've never been one to invest in the newest technology and I gawked at my friend when she said they were almost $300. But they are worth every penny! The difference between headphones and these is like comparing the sounds of a lawnmower and sitting in a spa in Bali. I've had numerous flights with these and now get so much more rest and sleep while using the Bose noise-cancelling headphones. It's the highest-price travel item I've probably ever purchased, but I cannot imagine traveling without these now.