Duttek Golden Plated Premium Quality 3.5mm 1/8" 2 male to 1 female Headphone Jack Socket Audio adapter(2 Pack) 3.5mm female to double male F/M adapter Use the Airline adapter to connect your own headphones to the in-flight entertainment system on the airplane for listening to music and movies The airline adapters converts a standard headphone stereo mini plug (1/8", 3.5mm) to a dual-prong airline jack Please note! Some newer airplane types accept the standard headphone plug direct, with no need for the adapter. There is a rarely used 3-prong jack that doesn't fit the adapter. Buying the airline adapter you are covered in the most cases. Package Content : 2 x Audio Adapter