Hello and thank you for asking your question.
My short response is as being trained by a Tinnitus professor I only wear noise canceling headphones because wherever you sit in the plane the engines are to loud. They have headphones that allow you to connect to your phone to download soft music or white noise. They also come with a button that is a feature you utilize to hear what you need to hear by pressing on and off. They are battery operated. If you require more information I am an American Tinnitus Association support leader and please feel free to email me at tvtinnitus@gmail.com. I would be glad to help...