Handling is simple, very lightweight and ergonomic device. I used it two days in a row without hand fatigue. I could find myself in front of people, next to the screen, with my PC to several meters from me. He responded perfectly to my request. There are 2 buttons to go to the next or previous dia. A button for displaying nothing and another for laser. It's really simple. I am very happy with my purchase, it was really a plus for my presentation.
