Surprisingly I couldn't find any threads about this class of device.

I'm looking for recommendations and opinions on these combination laser pointers / presentation flippers / mice. In general I find myself in situations where I show presentations and demos. For presentations it would be easy enough to stand at the computer and click when I want to move to the next slide. When demonstrating I find that I need to sit in front of the computer since there are more clicks than can comfortably be accomplished while standing in front of the computer. I feel that I'd be more effective and quite frankly more respectful of my audience if I could stand and get out from behind the computer.

Does anyone have any suggestions about these devices?