Secured connection, reliable performance Control and convenience are at your fingertips with this compact keyboard and reliable mouse. The strong and secured wireless signal allows you to choose where you want to work. And the desktop is easy to use—just load batteries, plug in the transceiver, and start typing. Secured Wireless Connection Microsoft 2.4 GHz wireless delivers a secured and reliable connection with up to 15-foot range. Easy-Access Hot Keys Quickly access Calculator, volume controls, mute, and play/pause. Microsoft® Optical Technology 1000 dpi provides responsive cursor control. Snap-in Transceiver Stows conveniently under mouse for portability. Power switch turns the mouse on and off for up to 8 months of battery life. Battery Status Indicators Lights let you know when your batteries are running low.