Targus AMU34EU User Manual page 7

Targus USB 3-button Laser Notebook Mouse
Due to the change in (high) resolution, the mouse may become too
sensitive and difficult to use (too fast for some users). After selecting
the suitable resolution, you can also fine tune the sensitivity. This can
be adjusted in the "control panel" of the Windows operating system.
Click on Start --> Setting --> Control Panel --> Mouse
In the "mouse properties" window, locate the "pointer options" tab.
Under "motion", use the slider to change the speed of the mouse.
Click Apply to confirm the setting.
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