When it comes to creating a sales pitch for a new product, you have a decision to make. If this new gizmo is really complex, you may or may not want to make yourself a cheat-sheet of the features to have with you for your presentations.
I know you're thinking this will look unprofessional, but what is unprofessional is forgetting a few of the major features and blowing the sales opportunity.
If I were still working for a tool manufacturer, I’m sure my marketing people would be providing you with a valuable sales tool like this. Unfortunately, most don't so you’re on your own to put this together. Additionally, I’m sure your district manager would be happy to distribute your feature/benefit sheet to the others in the district or region.
It’s simple: The more you know, the better you’ll do.