As my 70th birthday is fast approaching I decided to treat myself to a new iPad Air 2, pass on my iPad Air1 to my wife and to then offer her old iPad3 on eBay. I duly purchased a 128gb gold iPad Air 2 last Wednesday. I reset and restored both of the ol iPads and sat down to play with my new toy. Very impressed with all aspects, especially the clarity of the screen. Decided to check out some YouTube videos and was shocked to find that the audio was distorted and the whole of the iPad was subjected to an irritating vibration. Tried several audio sources to discover that the vibration was present on all. I found it most uncomfortable to hold the iPad while any audio was playing. I immediately Googled"iPad Air 2 vibration" to discover that this is a well documented issue. I visited the Apple Store today to ask for help only to be told that they had never heard of this problem before today. They offered to send the iPad to the workshop for investigation, at which point I requested the Apple Rep to demonstrate an iPad Air 2 from the demonstration display. He played audio on all 4 display models and they were all vibrating just like mine. The only advice I was given was to wear earphones. I requested a refund and returned home to reset the old iPads. Luckily I had not yet offered the older one on eBay. How can Apple allow such a fundamental design flaw to go into production?