Dreame D9 Manual Del Usuario página 9

Clearing Home Environment
To prevent your robot from getting tangled or trapped, tidy up any loose cord
(including power cord of charging dock), dishcloth, slipper, toy, etc.
Open the door of the room to be cleaned, and put the furniture into proper
place to make more space.
Before cleaning, use physical barrier at the edge of stairs and sofa to prevent
your robot from getting trapped or tumbling down.
To prevent the robot from not recognizing the area to be cleaned, do not stand
in the front of robot, threshold, hall way or narrow places.
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