Use the Airline adapter to connect your own headphones to the in-flight entertainment system on the airplane for listening to music and movies
Buying the airline adapter you are covered in the most cases
The airline adapters converts a standard headphone stereo mini plug (3.5mm) to a dual-prong airline jack Size: 36mm x 26mm x 11mm

• The airline adapters converts a standard headphone stereo mini plug (1/8", 3.5mm) to a dual-prong airline jack
• Some newer airplane types accept the standard headphone plug direct,with no need for the adapter
• Designed with a smaller rounded "base" to fit with All 2-prong airline jack (Some adapters doesn't and will not fit everywhere)
• Allow using your own 3.5mm audio jack headphone to enjoy the onboard radio, movies, etc
• Gold-plated connectors resist corrosion, provide durability and improve the signal transmission

The airline adapters converts a standard headphone stereo mini plug (1/8", 3.5mm) to a dual-prong airline jackOnvian