Want to know what the ballot paper will look like? Check it out here: https://aec.gov.au/referendums/vote/completing-the-ballot-paper.html

The text under A Proposed Law will read:
To alter the Constitution to recognise the First Peoples of Australia by establishing an Aboriginal and Torres Strait Islander Voice. Do you approve this proposed alteration?

I did my postal vote the other day and that was all that they give you, so just remember that you're expected to do all of your research and decision making before you get to the ballot box.