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.
These headphones are designed for iPhone, iPad and iPod models. A version is also available for Samsung and Android devices. Significant noise reduction for travel, work and anywhere in between. Deep, powerful sound for the music you love.