domoova DRV20 Manuel D'utilisation page 17

Operating the appliance
SPOT mode
This mode is the most effective when cleaning a particularly dirty
area. With SPOT mode, the robot will move in a spiral to concentrate
vacuuming over an area with a diameter of 2.5 m. Once it has returned
to its starting point, the robot moves a few meters and starts again,
until the battery runs out.
EDGE mode
This mode efficiently cleans difficult to reach areas, i.e. edges, along
walls, skirting boards, around objects and corners.
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