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.
When you are looking for the best travel headphones and best noise-canceling headphone, you want to be sure itâs convenient to take with you. It needs to be the ultimate travel companion. These all are lightweight and collapsible. They also all offer a long battery life.