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.
Bose headphones. Bose Corporation produces headphones for consumer, aviation and military use. The models range includes in-ear headphones, mobile headsets, supra-aural headphones, circumaural headphones and military/aviation headsets. The company was the first to release active noise cancelling headphones as a consumer product.