Signature MK650 Wireless Keyboard and Mouse Combo for Business, 2.4 GHz Frequency/32 ft Wireless Range, Off WhiteThe Logitech Signature MK650 Combo for Business is designed for all day comfort. The keyboard's integrated palm rest and familiar keystrokes complement the soft thumb area and rubber side grips of the mouse all helping to make working hours feel less like work. The time saving scrolling allows you to get line by line precision for documents or detail work. Switch modes with just a flick of the SmartWheel. Note: This is a non returnable item.