Califone Multipurpose Laser Presenter, 2.4GHz Control Interface, Upto 650' (198.12m) Laser Distance

The Califone Multipurpose Laser Presenter is powerful enough to identify objects up to 650' away, but with its receiver plugged into a computer's USB port (Mac & Windows compatible), the Presenter adds another dimensionality and can open an email program, a desktop, or an internet browser, with page up/down capabilities. With the flick of a switch, a second modality adds close, my computer and zoom in/out abilities.