How do I convert a pair of aeroplane headphones to be used with a normal 3.5mm jack?
The pair of headphones are from QANTAS business class. They have 3 prongs: 2 x 3.5mm and one 2.5mm
The two 3.5mm prongs are for left and right sound but the 2.5mm is (i think) for power for the headphones and the noise cancelling ability.
I'm not sure how to incorporate the 2.5mm prong into a normal jack or whether it's even possible.
I want to use these on an mp3 player or if the power needed is too big then on a laptop.
Your help or ideas is appreciated!