I would ask the HR/Hiring manager in the company. Ask for an itinerary for your trip. If not available, ask if you need to prepare a talk, on what subject they'd prefer. If they don't seem have any specific requirement, better prepare some slides from your own research so that you can pull them out easily to aid your conversation during the interviews. You need to be very well prepared on your current research subject and be active during the one-on-one interviews.