Dicota BlueStar Guide D'utilisation page 5

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Charging the battery
Please charge at least 10 hours for the first time usage and charge at least
6 hours when battery runs low.
Note: The charging time varies on different power output offered by USB
port of your Notebook or PC.
How to charge
Plug the USB cable into your BlueStar mouse and Notebook or PC by
USB port respectively and it starts charging. Mouse can work uninter-
ruptedly during charging.
Note: To continuously charge the BlueStar mouse via the USB cable,
your Notebook or PC must be ON and AWAKE.
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