I really liked the look of the logitech bluetooth unit but it wasn't available when I made my purchase, I got the microsoft optical desktop for bluetooth, it has a 30' range and the optical mouse works on everything from my couch to my leg, I found a stiff mouse pad at a computer store to use instead of a book but I rarely use it, this set is great, a little tricky to setup but much better than the gyration unit, thats RF, the bluetooth will give you much better results.