The freedom of cordless... the performance of optical... together in one eye-catching design. Logitech Cordless Desktop® Deluxe Optical features a comfortable, ultra-flat keyboard and a gently curved optical mouse, making it an excellent choice for home and office users alike. Advanced digital radio technology lets you work securely anywhere within a 2-metre range from your computer. A wealth of customizable function key commands simplify the things you do most often. And the cordless optical mouse delivers maintenance-free performance and reliability.