Add a touch of professionalism and style to your presentations withthe Kensington Si600 Wireless Presenter with Laser Pointer. It offerssimple and intuitive controls for controlling the slides and a cleverblackout screen button which allows you to hide the content thatneed not be shown. The red laser allows you to highlight certainareas of interest on the screen which make this presenter a practicaland functional choice. This 2.4 GHz wireless presentation remoteallows up to 20 m of wireless freedom to allow you to move aboutfreely while presenting. The USB receiver can be plugged into theremote when not in use and doing so deactivates the remote, to saveon the battery life. This presentation remote control also featuresa battery indicator light to remind you to change the batteries whenthe power left in the batteries is low.