Hong Kong company Earth Trek did their part to back you up during your presentations with their handy gadget LTD 27-008 Wireless Presenter Mouse. With its 8-direction cursor, it is now possible to control your notebook at a distance during your presentations while also utilizing it as a laser pointer when needed. Another detail that is worth mentioning is its black screen function which you can use at your convenience once you would like to draw attention to your speech rather than the screen.