Experience superior comfort and performance with the Logitech 920-002555 Keyboard Wireless Wave Mk550. Flaunting an innovative design this keyboard features wave-shaped key frame that supports varied lengths of your fingers. The contoured palm rest offers a comfortable place to rest your arms when you are not using the keys. This Logitech 920-002555 Keyboard Wireless Wave Mk550 with laser mouse are equipped with powerful batteries that last up to three years for the keyboard and two years for the mouse. The advanced 2.4 GHZ wireless connectivity virtually eliminates delays and dropouts while the unifying receiver ideally connects both the keyboard and the mouse. Thanks to the 128-bit AES encryption that offers high- protection to your information by encrypting the data transfer between the keyboard and the receiver.