The LogitechK360keyboard has a remarkable three-year battery life. This wireless keyboard uses the advanced 2.4GHz long-range wireless technology.The Logitech K360 Keyboard is perfect for your everyday tasks. This seamless accomplice to your laptop lets you type with comfort and takes up less space. It has an incredibly-long three-year battery life that makes you forget that it operates on batteries. With its six hot keys and twelve programmable F-keys, you can enjoy instant access to e-mail, music, and more. Just plug the Logitech Unifying receiver to your laptop, and you are ready to use this keyboard from a good distance from your laptop. Plus, it features sturdy, adjustable-tilt legs that can be adjusted to 8 degrees for comfortable use.