DC power to audio jack? Answered
I have a pair of airline headphones that have a standard 3.5mm jack for the audio but require power to an additional 2.5mm jack in order to work. I'm looking to use them with a desktop PC so thought about getting the power supply from the USB but am a little confused about how I can get it there, I've had a look around on ebay to see if there was someone that was selling a 2.5mm female to USB jack but havent managed to find what I need.
Do these things even exist? Or would I need to get myself a 2.5mm female connection and wire it up to a USB lead myself?