The Optical Desktop Elite is a positively lovely keyboard and mouse set from our friends at Microsoft. It connects to your PC via Bluetooth with a little USB dongle that is included. There are never any cuts in the connection and they have excellent response time. If you are a gamer, you may be more interested in one of Logitech's gaming mice, as they have adjustable weight and speed, but the mouse that comes with this is perfect for anything else. Be warned, however. This set only works with Windows Vista, or Windows XP Media Center Edition. If you don't have one of those operating systems and you are not going to be installing them, you should begin looking at different keyboards. For those that this will work for, it is a comfortable keyboard that is easy and enjoyable to type on, and an excellent mouse.