Question about iRobot Roomba 975

Hello Carmine_landi
Thank you for your question. The Roomba 975 cleans large areas and entire floors. Unfortunately, room-to-room navigation via the iRobot Home App is not possible with this model. For this we would recommend a Roomba from the i or s series from iRobot. If there is anything else we can do to help you with your purchase decision, please feel free to contact us again at any time.
Best regards,
Your iRobot Team

Yes, it moves from room to room until the battery is empty. So it may charge in between and then continue its task until it has cleaned everything.