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.
To use youâre own headphones youâll need an adapter that converts a regular headphone stereo jack (1/8â² â 3.5-mm) to a dual prong (1/8â² â 3.5-mm) airline jack. Bose includes an adapter with their noise canceling headphones, and so do most other manufacturers.