Hassle-free: Say goodbye to batteries and charging cables thanks to this keyboard’s solar-powered case that charges itself whenever there’s light and lasts for at least 3 months (2) in total darkness Sleek and Ultra-thin: With sleek lines and a thin profile, this stylish, streamlined solar keyboard adds style to your workspace whether you’ve got a laptop computer or desktop PC Comfortable Typing: Combining your favorite features of traditional keyboards, laptops and a Logitech-only concave key cap design, you’ll enjoy faster, quieter, feel-good typing hour after hour Advanced Wireless: K750 Wireless Solar Keyboard features Logitech Advanced 2.4 GHz wireless connectivity, giving you the same reliability of a cord plus wireless convenience and freedom USB receiver: The Logitech Unifying receiver gives you up to 33 ft (1) of wireless freedom and lets you pair up to 6 compatible Logitech peripherals; fewer cords, less hassle, and one easy workflow