LG Audio - How can I set the speaker not to be turned off automatically?

Automatic Power-Off Function for Speakers

The speakers are designed to automatically turn off to save power consumption, in compliance with regulations.

• Wi-Fi, OPTICAL, HDMI, Bluetooth Connections :
  The speakers will automatically turn off if there is no input signal or music playback from a connected device for  20 minutes .

• Portable Connection :
  The speakers will automatically turn off if there is no input signal or music playback from a connected device for  6 hours .

• Power-Saving Function :
  The power-saving function cannot be disabled or turned off, as it is a built-in feature designed to automatically manage power usage.