Logitech LIGHTSPEED G903 Guide D'installation page 5

BUTTON CONFIGURATIONS
G903 comes with replaceable buttons and button caps,
which are held onto the mouse magnetically These should be
stored in box when not in use These replaceable buttons support
conversion to the following configurations:
1 Left handed
2
Right handed
3
No buttons
4
Full buttons
1
3
5 ENGLISH
2
4