If you have any kind of instruction guide, manual or branding flyer that ships with your product, you should get feedback from a general audience to make sure it reads clearly, is free of typos and answers all consumer questions (especially if it's being translated into English from another language).
Questions you could ask:
"If you received these instructions, would they be easy to follow? Why or why not?"
"Do you see any typos in the attached flyer?"
"Which version of the following inserts is the most clear on how to setup your product?"