There are plenty of solutions for getting a charge into your iOS devices, but there’s only one that uses tiny wind turbines and comes in the form of a mask that makes you look like Bane from Christopher Nolan’s next Batman movie. The Aire Mask is still in the concept stages, so you can’t actually buy one yet.

It’s simple enough in theory though: a facemask with an iOS-standard adapter protruding from it. Connect your iPhone while you’re wearing it and your natural process of breathing will spin a set of tiny wind turbines on the inside, converting that energy into electrical charge juice for your connected device.

Not only does this offer a more energy-saving solution for charging your Apple toys, it also ought to come in handy when you’re off the grid and in need of a non-outlet power source.