this be a absolutely excellent product , and you just can not beat the price . in we conference room , the computer be back in a corner near the lcd projector . unfortunately , that be nowhere near the conference table where people sit . previously , we have to jockey thing around and avoid trip over cable to make thing work .  now , you can sit anywhere in the room and control the pc . you can even pass the keyboard and mouse around . Goodbye cable ! and it be completely plug-and-play . pop the include battery into the keyboard and mouse , plug the rf receiver into the keyboard and mouse port on the pc , turn on the computer , and you be up and run ! the hardest part be open the seal plastic packaging .  one other reviewer mention a inability to use the keyboard and mouse simultaneously because of channel conflict . you can -- and should -- have the two run on different channel . it even say so in the documentation . unfortunately , the default setting put both on the same channel , so you might have a problem unless you read the documentation first .  my only complaint with the product -- the only thing that keep I from give it five star -- be the size of the mouse . it be a little wide and hard for people with small hand to use . but that be nitpicking .  I be order one for home tonight !