A:Answer If you flip over the mouse, there is a button underneath that allows you to switch between 3 devices. However, it's actually very annoying having to switch devices like this when they are right next to each other. So, if you are thinking of using this to easily switch between your laptop screen and your tower monitor, I would not buy this mouse. There is no way to remap the device switch button to be one of the more conveniently positioned buttons on the upper surface of the mouse. I honestly don't know what Logitech was thinking. They really bungled this feature.
However, if you are planning on only using this mouse for a single computer, I highly recommend it. Otherwise, look for another mouse.
