airline adapter, dual 3.5mm male to 3.5mm female aux audio jack adapter converter for using boes headphone on airplane airline flight tobysome <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