Maeline&reg; 3.5 mm 1/8-Inch Airline Adapter for Headphone Stereo Plug 5-PACK 5x 3.5mm airplane 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 Gold-plated contacts Our Airline Headphone Adapter will convert a standard stereo headphone jack 1/8" to a standard airline dual-prong jack.