40 x Airline Adaptor 3.5mm aux Headphones Entertainment Music. Ideal for airline entertainment.  Adapt the absolutely horrid airline entertainment system to accept your own quality head/earphones. This adaptor will plug directly into the entertainment sockets on airlines enabling you to plug your own quality noise reduction earphones in and listen to a more quality sound. I'm selling these so cheap. It works out at less than £1 each .you can hand them to friends and family. you could save some money or better still you could make some money. Check out my individual option in my other listing if you only need 1 or 2. For your self.