• Get the feeling of clicking and typing without annoying clicking and typing noises with SilentTouch, a proprietary Logitech technology that eliminates more than 90% of keyboard and mouse noise. The full-size keyboard provides everything you need with an elegant and efficient design. 8 handy shortcuts and a full numeric keypad make data entry and navigation easy. Curved, portable shape. Fluent, precise clicking and marking on most surfaces. Not to mention the impressive silence that SilentTouch makes possible - with a powerful, reliable 2.4GHz wireless connection that provides 10m range, there's no interruption or delay. With its small USB receiver, it does not take up space on your desk and can easily stay on your computer. Thanks to 36 months of keyboard and 18 months of mouse battery life (there are also on/off buttons), you can use it for months without having to deal with battery replacement.