EUROCOM M4 User Manual page 236

Control Center
Left Windows Key (Gaming)
Click Disable to disable the Windows Key on the left side of the keyboard. This may be useful if you are using
the keyboard for gaming and wish to avoid accidentally triggering menus with the Windows Key.
Fan Speed (Gaming)
The fan speed will adjust itself automatically to control the heat of the CPU. However you can adjust the setting
to maximum if you prefer.
Headphone (Gaming)
The headphones may be set for different effects using this menu.
Caps Lock/Scroll Lock/ Number Lock/Airplane Mode
Click the button to toggle the appropriate lock mode and Airplane Mode.
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B - 6 Control Center