A company called Genius just debuted a really cool product called the Ring Pointer — a ring-style presenter with built-in laser pointer for those making PowerPoint and Keynote presentations. Using one hand, presenters can start and stop presentations and switch between slides as well as use the laser pointer since you wear it like a ring on your finger.
Functions include Play/Exit, Last Page, Next Page, blank screen functions as well as the laser pointer (10-meter wireless range). It uses a 2.4 GHz wireless technology.
Transportation and recharging is simple. When the battery-low indicator lights up, just plug the Ring Pointer using the micro USB rechargeable cable into a computer. To prevent misplacing or losing the USB pico receiver, it can be attached to the Ring Pointer for storage.
The Genius Ring Pointer lists for $54.99 and all the specs are here: http://www.geniusnet.com