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.
up vote 16 down vote favorite. I have a United Airlines flight this week and I would love to listen to an Audio book for the duration. Unfortunately my only working pair of headphones are bluetooth. I've looked on United's web page for prohibited items but see nothing about bluetooth devices.