No, the Logitech K750 Wireless Solar Keyboard does not use black magic or any other sort of witchcraft, but it is true that you never have to charge it or change the batteries. How can that be? It uses solar panels to recharge constantly while you’re using it, and you don’t even need sunlight to charge it. A desk lamp or just the light from the light bulbs in the room in which you’re going to do the trick! It’s both amazing and liberating to never have to worry about reloading your wireless keyboard, and both Windows and Mac versions are available.
From the Product Page:
√ Solar-powered keyboard: No battery hassles—any light source keeps your keyboard charged for at least three months in total darkness
√ Only 1/3-inch thick: Ultra-thin design adds sleek style to your workspace
√ Familiar Mac layout: All the keys you’re used to, plus a Launchpad hot key, are exactly where you expect them
√ Feel-good typing: Logitech-only concave key cap design for faster, quieter, more comfortable typing. System Requirements – Mac OS X 10.5 or later,USB port,Light source from sunlight and/or indoor lighting
√ Tiny Logitech Unifying receiver: Stays in your laptop and connects additional compatible wireless devices. Not Bluetooth compatible