Rosewill Reflex Manuel De L'utilisateur page 6

Laser Gaming Mouse
RGM-1000 User manual
DPI Tab
The Default DPI settings :
1000, 2000, 4000, and 8200DPI. You can adjust DPI from 200 to
8200DPI. Uncheck the "Constrain to XY" box option to adjust the
XY sensitivity levels independently.
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