Owners of Bluetooth headphones are still frustrated that they can't be used with an airplane's in-flight entertainment system as we fly increasingly frequently. You may get the Bluetooth Airplane Adapter from Smart. Owners of wireless headphones can utilize the Bluetooth adaptor rather than the poor quality headphones provided by the cabin crew. This gadget transmits sound over Bluetooth after being plugged into the seatback entertainment socket, or sockets, if the aircraft has one for each left and right channel.