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.
The three most common headphone cables are 3.5mm, 2.5mm and 6.3mm cables. Below is a picture of each type and a summary of what each type of cable is used for. 3.5mm cables are found on most portable CD players, MP3 players and boom boxes.