User's Manual

3.4 Replace the Brush Head
⚫ Press the button to extend the brush head and pull the brush
head upwards and disassembly it.
⚫ Keep the brush head facing the same direction of the button on
the body, and insert the brush head into the body.
Reminder: (Do not press down the brush head hard when
installing the brush head to avoid the malfunction of the extend-
retract motor)