Goodbye battery hassles. Solar power keeps your keyboard charged and ready, even indoors! It doesn’t get more hassle free than this. This keyboard charges itself whenever there’s light (even from the ceiling lights in your office) and stays charged for at least three months in total darkness so you can say goodbye to battery hassles. With sleek lines and a thin profile, this stylish, streamlined keyboard adds style to your workspace whether you’ve got a laptop or desktop. Combining the best of traditional keyboards, laptops and a Logitech concave key cap design, you’ll enjoy faster, quieter, feel good typing hour after hour. The K750 includes a Logitech Unifying adapter, which is a tiny receiver which is so small, it'll live in a spare USB port. Plus, with the Unified receiver you can easily add a compatible wireless mouse or keyboard without the hassle of multiple USB receivers. Setup takes seconds, you simply plug the wireless receiver into a USB port on your computer and start using your keyboard right away without software. The K750 features advanced 2.4 GHz wireless, so you can work or play in more places like your comfy couch and the long range wireless connection virtually eliminates delays, dropouts and interference. Designed to work with all Microsoft operating systems from Windows XP onwards, this keyboard also requires available light source from either sunlight or indoor lighting. Backed by Logitech's three year warranty, the Wireless Solar Keyboard K750 offers a hassle free, easy to use solution.