Speaker will use his own computer for all of his presentations. He has a windows based computer and it needs to be near him onstage or nearby. JMan’s presentations are packed with video and big files that perform their best with certain programs that are download on his PC. This allows him to be sure that his presentation can be delivered without any kind of technical difficulties.
Jman can not stay in the same spot for a long period and talks a lot with his hands. The wireless Lavalier Mic is the only way to be sure that you can hear him 1000% and he isn’t confined to a small area of the room that would be much less enagaging.