On my plane ride home yesterday, the gentleman sitting next to me was wearing these Bose headphones. He asked me if I knew what they were and I didnt so, he told me to put them on and to turn the power switch on and off and listen for the difference. I was shocked….
There are several brands and models, but what these headphones do is basically listen to ambient noise, such as the hum of a jet engine, and then emit the opposite wavelength so they effectively cancel each other out. The result, near perfect silence…no jet hum. They run about $250-300 for a good set, but if you travel a lot and want some down time on your flights, this is the way to go. After doing some research, I have also found that a number of companies also offer similar models which allow you to listen to music, play video games, watch movies, etc, all which still canceling out ambient noise.