Due to this high prevalence, vertebral artery hypoplasia (VAH) has not yet been considered an independent risk factor for ischemic stroke [1,2].
How to use your own headphones on Americanâs new 777-300ER. Passengers traveling in First and Business Class on Americanâs new 777-300ER are provided with Bose QuietComfort 15 Acoustic Noise Canceling headphones to use during the flight.
The #PaxEx problem is this: while 3.5mm headphones were the standard, passengers with Apple smartphones could reasonably be expected to pop their headphones into their carryon and use them with the latest airline IFE systems. For iPhone 7 users and beyond, that will no longer be the case.