In terms of sound quality, the top-of-the-line A20 features dual volume controls for that "just right" sound level, as well as mono/stereo capability and a 3.5mm auxiliary audio jack for outstanding in-flight music. With Bose's trademark Priority Switching feature, users are able to customize the order in which they receive intercom and/or music inputs. At just 12 oz., Bose's latest ANR masterpiece further raises the bar which the rest of the industry is measured against. An exceptional item from the absolute best in the business.
Note: This version is Non-Bluetooth, straight cord with a single 6 pin connection for aircraft provided power.
Love the comfort of Bose. My instructor offered to let me use his with the warning, You might never want to use your old ones again. He was right! And going the extra mile to do the aircraft power set up was the best choice I ever made. Love it!