Logitech's padded, contoured palm rest and ergonomic "wave" keyboard design ensure you can type comfortably for hours. Bundled with an ergonomic mouse, this wireless combo offers excellent bundle value, while the Logitech Unifying receiver means you only need one wireless receiver for both products. Its tiny size means you can leave the receiver installed in your laptop for a hassle free setup. Compatible with Windows XP, Vista and 7. Backed by a 3 year warranty.