Superb product and handy

The design is magnified and the handling requires only two minutes max (different gestures compared to a more traditional mouse).
The function to advance slides in and / or pictures is great; you just have to understand the "return of the object" to go back.
And given its small size (it holds without pbe in hand) forward the documents appear by magic for people of the room.
Great product!
If you have the utility so please ....