You must download a software dedicated to the mouse that you can download from the site builder to configure the way you want the mouse:
[...]
The only worry is that I get to see 7 programmable buttons for my part of the 9 proposed. The DPI button and the button to change the light are not configurable to what I saw but I could be wrong.
At the USB connection, the mouse is very sensitive. If I lightly touches the connection of the mouse behind my tower, my mouse will turn off all alone. I just retouched the connection and restarts ... Not so annoying that its not too normal anyway.
I recommend this mouse very good.