You will need the syllabus specific to the course you are taking, textbooks, charts, plotter, a Pilot Operating Handbook, and a logbook.
Flight Training Materials
HeliStream sells all necessary student materials from textbooks to charts to headsets.
HeliStream has headsets students may use, however ultimately, most students do prefer to purchase their own. (HeliStream is a David Clark dealer and offers headsets, as well as a variety of headset options for sale.)