Pack of 2 Airline Airplane Earphone Headphone Headset Jack Audio Adapter 3.5mm Quantity: 2 Allow using your own 3.5mm audio jack headphone to enjoy the onbroad radio, movies...etc Fits all standard airline connectors and headphone stereo jacks Easy to use The airline adapter converts a regular headphone stereo jack 1/8' (3.5mm) to a dual prong 1/8' (3.5mm) airline jack