i have a microsoft comfort desktop wireless keyboard and mouse, and there are so many things wrong with it. Sometimes the keys you press don't register, or get stuck so when you typing instead of hello you get hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh, also in games the mouse doesn't register any button presses unless you thump ot. Wireless sucks for me.