The iPad Air 2 vibrates with sound. It is not a defect or design flaw. Yes, it should have been mentioned by Apple and in reviews and was not. It is annoying and a deal breaker for some, but with Apple's generous return policy no one is stuck with a device they aren't happy with. I doubt Apple will make any changes this year, so those who can't tolerate the vibration should probably pass on the Air 2 and hope for better next year. Fortunately for me it is a non issue and I love my Air 2.