Roborock H7 Manuel page 18

Use
4. Multi-surface brush:
Connect to the baton for cleaning low and medium pile carpets.
It can also be used on tiles or other floor surfaces.
Carpet Boost is automatically activated when the Multi-Surface
Brush is installed. When a carpet is detected, suction is
automatically boosted for a deeper clean. It will return to the
previous mode when a carpet is no longer detected.
Note: Carpet Boost will not activate when vacuuming in MAX mode.
5. Flex Tube:
Connect to Dusting Brush or Crevice Tool to clean small or
narrow spaces such as drawers and car interiors.
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