<b>Replacement QuietComfort airline headphone adapter/audio jack plug.</b><br><br> This replacement adapter lets you connect your Bose QuietComfort or other headphones to in-flight entertainment systems equipped with dual or single output 3.5 mm jacks. <br> Simply plug the headphones cord into the adapter and insert it into the airline jacks. <br> Then enjoy powerful, balanced sound for music or movies during any airplane travel. <br><br> Package included Adapter*1