Dell U2414H Monitor - Manual (Page 44)

44 | Operating the Monitor
Other Settings
Button Sound The monitor beeps everytime a new option is selected in the menu.
This feature enables or disables the sound.
DDC/CI DDC/CI (Display Data Channel/Command Interface) allows your
monitor parameters (brightness, color balance, and etc.) to be
adjustable via the software on your computer.
You can disable this feature by selecting Disable.
Enable this feature for best user experience and optimum
performance of your monitor.