Media center  Four hot keys let you control the most-used media activities (play/pause, volume up, volume down, and mute).  Quiet-touch keys  Appreciate a keyboard with quiet, responsive, thin-profile keys.  Calculator hot key  With the touch of the button, you can quickly access the calculator.  Spill resistant  Enjoy a beverage while you work. This keyboard is designed to withstand an accidental spill.  Windows start screen key  Simply press the Windows start screen key to view your apps and start screen.  Plug-and-Play  No software needed. Just connect the keyboard to your PC and go!  Comfort  Experience comfortable use in your right or left hand.  Optical technology  Enjoy high-performance optical technology. The 800-dots-per-inch (DPI) optical sensor delivers greater accuracy and control.  Scroll wheel  Move through documents and webpages quickly