DIY noise cancelling headphones
This post was published 5 years 2 months 6 days ago which may make its actuality or expire date not be valid anymore. This site is not responsible for any misunderstanding.For the do it yourselfer who can work from a schematic here is something for you to do if you have the time. I have no idea how well these work but a nice pair can set you back a couple hundred bucks last time I looked.