After the Logitech devices in the meantime have become outrageously expensive, I decided for the presenter Labtec - which I deeply regret!
Here the negative highlights (what positives I can not remember this one):
- Scrolling through the PowerPoint slides mostly works not, then sometimes the thing jumps right around multiple slides forward
- To correct for this effect: the same thing happens in reverse leaves, so you stand then in the film set somewhere and then have to walk back to the PC to manually get to the right spot in the presentation again. At the 2nd time within 3 minutes I turned the thing and stowed in my pocket - where it now remains.
- The Presenter can theoretically start a PPT presentation in full screen mode, however, is then always started with the first slide. When you interrupt a presentation you would have to back through all the slides by clicking to move to the current slide - which is totally unacceptable in my presentations with more than 200 films, even if the blades would work.
Therefore my Resume: Stay away from the device!