I have done product presentations, but with much less view people max 40 and have experienced technical issues. But I am always prepared for the presentations and I have always tested the presentations on colleagues and friends a few times to tweak it and get more secure and confident to give the correct image of the Compony and the product.

I'm sure they will be much better next time I wonder if they analyze the performnce and their public image or don't care at all?