Twelve South’s AirFly Pro 2 let you connect wireless headphones to in-flight entertainment systems as well as the Nintendo Switch. | Image: Twelve South With Memorial day weekend kicking off the travel season, we’re seeing a lot of deals pop up on travel gadgets, from portable power banks to noise-canceling headphones. One of the best right now is Twelve South’s AirFly Pro 2 Bluetooth adapter, which lets you use your wireless headphones with in-flight entertainment systems so you can enjoy you