FlyerTalk Forums - View Single Post - When Bose Headsets go Missing (merged threads)
Old Mar 8, 2016 | 6:05 pm
  #11  
Sant
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Originally Posted by fanger
If you plug it into one of the two sound-carrying holes you will hear one of the channels. If you get one of those F-shaped adapters you can listen to both channels. They used to be included in the free headphones 4-5 years ago and some higher-end headphones still include them.
The retail QC25s still come with an airline adapter.

QuietComfort® headphones airline adapter
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