These adapters are portable and convenient when youre traveling on a plane. This adapter is perfect for travelling with kids: simply by combining your child s headphones and this adapter can lead to instant calmness and a moment of peace for you. Apply your own stereo or noise cancelling headphones on-board to enjoy good sound amusement rather than using the headphones provided by the airline. Features: Golden plated socket Converts audio jack from airplane dual socket to a standard 3.5 mm (1/8 inch) audio jack. Allows you to use your own 3.5 mm audio jack headphone to enjoy airplane radio, movies and etc. Easy to install, plug the adapter to the armrest of the aeroplane seat, then you can plug your own headphone to the adapter, enjoying the in-flight entertainment system. Compatibility: Most Airline dual socket headphone audio jack. Package includes: 2 Airplane flight headphone adapters Attention: Some airplane types are able to accept the standard headphone plug directly, no need for the adapter. There is a rarely applied 3-prong jack that doesnt fit the adapter. The airline adapter is convenient for you in the most cases.