Use the wireless keyboard now since some mahr than half a year. Right at the beginning I was a bit disappointed by the very simple processing. But what upset me now be final, is that the letters and numbers disappear! Who keyboard - as I do - very intense use, should at least find a hint that this is not suitable for the "continuous operation". The mouse is a little hesitant to use, but it can get used somehow. All in all: buy again I would no longer set.