content: Bought this item for the remote mouse control; I have an HDTV connected to my desktop computer over 50ft way using an HDMI cable form [...]. With the Keyspan PR-US2, I have full use & control of my desktop mouse including left & right mouse key and scrolling from the toggle switch on the side. Now I can browse the web, watch Hula & Net Flicks on the Big Screen in my entertainment room 50ft away from the computer, Very Cool. It Works Great and works through walls.