3M EM 550GPL Owner's Manual page 11

Instructions
GB-11
Move your mouse.
2D
Basic mouse
functionality
will activate.
While moving the
mouse, the green
light on USB
receiver will
quickly blink.
While the mouse
is idle, the green
light will not blink.
Your mouse is now ready for use. You can customize
your mouse settings through your mouse settings
utility included with your operating system
(Windows, Mac, Linux).
Operate by moving
entire mouse around
on mousing surface.
Use the thumb
button for left
and right clicking.