Keychron K4 Benutzerhandbuch Seite 7

For Mac: Go to system settings > Keyboard > and enable the function keys.
*For F5 & F6 as function keys press fn + K + C (for 4 seconds) and use same shortcut to
switch.
Settings
5. Disable Auto Sleep Mode
The keyboard goes to Auto Sleep Mode in 10 minutes of sitting idle to save battery.
Press fn + S + O (for 4 seconds) to disable the Auto Sleep Mode.
Keyboard
7
Multimedia keys
Function keys
Enable the function keys