content: I had the Keyspan plugged into the back of my computer which is set up next to my entertainment center. I wanted to be able to control the mouse on my 46" Samsung LCD screen from the couch, no more than 5-10 ft away, but it cannot even pick up a signal from that distance to the back of my tower. I had to buy a USB 2.0 extension cord to run it up the back and on top of my entertainment center where I thought for sure it should be able to pick up the signal with near lossless accuracy, but no joy. The signal is better with the extension, but is still sporatic a lot of the time. The media button is a plus though, which is the only reason for the 2 stars. My advice would be to go for a 2.4 ghz, which is why I just ordered a Hiro 4-in-1 2.4GHz Chrome WIFI Presenter, which I hope is far less disappointing.