I bought the set in Dec. 2009 and use the keyboard and the mouse everyday. The support I began, whenever I have to do a longer office applications. It can bring me much to work a little more relaxed. The keyboard is really good, has a reasonable stop and also the right size for the bed or on the sofa times to comfortably write and surf. The best thing about this combination is but the mouse. I have no idea how many times me in those 2 years, the mouse is down flown, but there are have been determined on the 50 times, mostly from 1m to the laminate. Most flies from only the battery cover and every now and then a battery disappears but as soon as she is reassembled the part runs without snags. Just great. The batteries last for the way both in the mouse, as well as in the keyboard really very long. I hope the information to assist you.