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.
Wireless headphones are easy to use. They come with a transmitter unit, which is sometimes called a base unit. This base unit plugs into your audio device (stereo, radio, CD player, television set, computer, telephone, computer, etc.) in the slot reserved for a normal headphone unit.