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.
Yes. Bose SoundSportÂ® in-ear headphones have a hard-molded source connector, which significantly improves its strength. The acoustic ports are positioned to resist sweat and weather, and covered with hydrophobic acoustic cloth to keep moisture out, but let sound pass through.