If you do slide-show presentations, it's becoming increasingly likely that you're working directly from a laptop computer rather than from transparencies. But using a mouse to control the show from a lectern is awkward. RemotePoint from Interlink Electronics (805 484-1331) can make the presentation a lot easier. A small infrared sensor plugs into your Mac or Windows computer, and an oblong device with a pressure-sensitive rubber pad controls the cursor from up to 40 feet away. It takes a bit of practice to control the RemotePoint. But once you get the hang of it, using the pointer is a lot easier than fumbling with a mouse or trackball while giving a presentation.

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