Hello Gabriela
Thank you for your question. When you purchase a Braava 390T, there is already an initial kit included, this includes;
1 NorthStar Navigation Cube and "C" batteries
1 multi-purpose cleaning cloth
2 microfibre dry wipes
2 microfibre wet wipes
1 Pro-Clean Reservoir Cloth
1 Turbo Charger
For the cleaning agent, we recommend that you only use our hard floor cleaning solution. Mixing a little of it with pure water is sufficient. If you need new cleaning cloths later on, you can also find them here at Galaxus. Please find the corresponding articles below:
iRobot 3-pack (3x)
iRobot Microfiber (3x)
iRobot Hard Floor Cleaning Solution (1x)
If you have any further questions or uncertainties, please feel free to contact us again at any time.
Best regards,
Your iRobot Team