The Jasper Keynote is an handheld green laser pointer with built-in RF transmitter.
Paired with a USB receiver, the Jasper Keynote allows you to laser-point and control your PowerPoint slides at the same time.
The Jasper Keynote is a real laser and has an outdoor visibility of several miles. Be of course very careful with it and avoid direct eye exposure.
The Jasper Keynote Laser pointer sells for $169 on the Jasper Laser Site.
Apparently green is beneficial for laser pointers because your eyes are approximately 50x more sensitive to green than red.
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