megasmile Black Whitening Manuel D'utilisation page 49

TRAVEL LOCK
The Black Whitening®- travel lock; locks and unlocks
the device in order to prevent accidental operation
during travel.
Locking the device:
In order to lock the device, push the button and
hold it for about 3 seconds after all display lights
extinguish. The upper light blinks white. The device
is now safe from accidental activating.
Unlock:
To unlock the device push the button for about
3 seconds. The upper light blinks white.
An alternative is to put the toothbrush back on
the charger base. This unlocks it automatically.
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