Features: Golden plated socket. Great signal transfer. Convert o jack from airplane dual socket to a standard 3.5mm (1/8 inch) o jack Allow using your own 3.5mm o jack headphone to enjoy airplane radio, movies...etc. Don'for t need to use the cheap headphone supplied by the airline Easy to install. Just plug the adatper to the armrest of the aeroplane for seat, then you can plug your own headphone to the adapter for enjoying the in-flight entertainment system Compatibility: For Most Airline dual socket headphone o jack Specifications: Material: Zinc Alloy Color: Black, Gold Tone Overall Size: 36x29mm/1.42x1.14" Quantity: 2 Pcs/1 Set Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Includes: 2 x o Adapter