ECOVACS ROBOTICS DEEBOT Pro 930 Manuel D'instructions page 22

3. Operating and Programming
3.5 Detachable, Handheld Vacuum Cleaner
DEEBOT has a detachable Handheld Vacuum Cleaner with attachments to clean more than just the floor.
1
Install Crevice Tool
Note:
Put the round end into Handheld Vacuum Cleaner. The Extension
Wand can be attached to add variable length.
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2
Install Fabric Brush
Note:
To use the Fabric Brush, attach either end to the Crevice Tool
first. The Extension Wand can be attached to add variable length.