Why Do Older Airplanes Have Double Headphone Jacks? 3 Possible Reasons
Why Do Older Airplanes Have Double Headphone Jacks? 3 Possible Reasons … systems. As technology improved, airlines switched to electronic systems. However … been built into the aircraft. Replacing the old double … past, passengers had to buy or rent airline-issued … with standard audio devices, airlines might have been discouraging …