The Microsoft Wireless Comfort Desktop 5000 Keyboard and Mouse Set is an innovative approach if you wish to go cordless while providing comfort and functionality. Featuring a glossy black finish and modern design. The comfort curve design allows you to operate it with a natural posture providing you with a comfortable work space. This Microsoft Wireless Comfort Desktop 5000 Keyboard has a new feature, the taskbar favorite key, which allows you to map the location of a Windows taskbar application. This feature also automatically updates the change of an applications location and accesses your favorite application with one touch. With the BlueTrack Technology, you can operate this wireless mouse on any surface. This technology combines the functionality of an optical and a laser mouse.The mouse merges the image sensor and pixel geometry to offer precise performance. The 2.4GHz wireless mouse provides an uninterrupted working range up to 30 feet.