I was looking for a perfect replacement for my old keyboard and mice. I found this Logitech model that fits all that I need and much more. It has a lot of interesting features like the LCD keyboard display where you can see when you got a new email message, and view application information, and to check the date and time too. The touch-sensitive media controls are ideal to set the favorite applications, websites or folders. I have my old keyboard for a long time, that is why I am so happy with this keyboard that I received as a gift from my father. Seeing all this features in one place is close to say that is one of the best options of keyboard and mice available. Of all the features my favorite one is the Bluetooth 2.0 wireless technology that has an extended range of up to 60 feet that helps in preventing interference from other devices. I like the mice too is a great change from having a cabled one to a great ergonomic unit without the tail. I never had any problem with it at this time.