Want another option for using wireless headphones with your Nintendo Switch? Maybe take a look at the Kickstarter for Genki, then. It's a $39 USB-C Bluetooth dongle for Nintendo's hybrid console. You can pair two headsets to it, if you'd like, and apparently the whole setup shouldn't add much too lag (40ms) between what you see on screen and what you hear like a traditional Bluetooth audio signal would. One downside, however, is that the Genki draws power from the Switch itself, which means if your battery goes low on a flight, you can't recharge the system and use the dongle simultaneously.