The Inspiron 15-5568 is shipped with a Precision touch pad.
A precision touch pad is a new class of input device that provides high
precision pointer input and gesture functionality. Precision touch pads
interact with the operating system directly without a driver.
The operating system handles the overall functionality of the touch pad and
there are no separate drivers available for download.
Turn off/on wireless
Toggle scroll lock
Toggle between power and battery-
status light/hard-drive activity light
Open application menu
Toggle Fn-key lock