Now you can use your personal headphones in on an airplane. Just plug the 3.5 mm jack from your headphones into the adapter, which will we plugged in to the airline seat audio jack. Enjoy the onboard entertainment!- Converts a regular headphone plug 3.5 mm to a dual 3.5 mm airline plug- Input: 2x 3,5 mm plug- Output: 1x 3,5 mm jack- Gold plated- Fits to all standard airline connectors and headphone stereo jacks