The KB5850W provides one-touch access to the Internet, email, search, my computer, applications, browser forward/back, calculator and your multimedia controls. The design utilizes 2.4 GHz wireless technology to provide a flexible range of motion for your operating environment, up to 30 feet. Designed for hassle-free installation, plug the Nano receiver in, install the batteries wireless desktop will be automatically recognized and connected. The KB5850W scans the desktop at up to 4000 frames per second, providing one of the most accurate input devices available on the market today.