RocketFish RF-MSE12 User Manual page 11

Changing the mouse resolution
Your mouse can operate in resolutions of 800 dots per inch (dpi) or
1600 dpi. Push the Resolution button to toggle between resolutions.
A higher resolution is more accurate but may be more difficult to
control.
Note: We recommend you use higher resolutions for gaming and lower resolutions
for normal operation.
Resolution
button
RF-MSE12 11