The Twelve South AirFly is a simple piece of kit with a singular purpose: connect your wireless headphones to non-wireless interfaces.
And there are, unbelievably, still plenty of those around. If you travel around a lot, you'll know the pain of threading a cable into an aeroplane's outlet, only to keep having to unplug and reconnect as your inconsiderate seatmates keep wanting to use the bathroom. And if you like the gym, you'll have to choose between lugging your phone along to have something Bluetooth-connected to listen to, or have to endure the sound of your own heaving, panting gasps as you try to survive 30 minutes on a treadmill surrounded by the worst radio pop or gym techno imaginable.
