Could anybody recommend me a wireless keyboard and mouse? I am looking for the set, which would be rechargeable by a USB cable (I don't know if something like that even exists). My idea is like, i have wireless keyboard and mouse until the battery is uncharged, then i will plug a cable and I have wired keyboard (and mouse) until the battery is fully cahrged, then unplug the cable and again. I didn't find anything like that, so if anybody here has heard about it, please give me an advice or recommend me a simillar oportunity. Tanks a lot in advance