How can I mirror full screen Android devices for presentations?

A

AC Question

How can I mirror full screen android devices for presentations?

I want to use an android tablet to do presentations: Ideally, I want to hand 1-2 clients each a tablet that displays a powerpoint presentation that I control with my own tablet. Their tablets are essentially just displays: they don't control when the presentation moves on, instead I do from the tablet that's being mirrored.

More importantly, I do these presentations inside their homes, and cannot rely on their wireless network, nor can I rely on an internet connection.

What software/hardware would I need to accomplish this? Would it be as easy as connecting them via bluetooth to a small router that I'd bring with me?