Please make sure that the audio card on your computer works normally. I suggest you test it with a headphone first.

• If you use HDMI, please make sure that there is audio signal from the HDMI. If there is no audio signal, the speakers will not work even if you use the audio cable. There will be two audio sources when you use the audio-in port and HDMI at the same time. To avoid conflict, the monitor will disable the audio-in port when you use HDMI. The settings for HDMI are different in BIOS and OS for different computers, so I suggest you contact the manufacturer of your computer for consultation.
  


• If you use DVI or VGA port, please plug the audio cable into the audio port on the monitor for the other ports on your computer to work normally.
  The audio-in port on the monitor



• If problem is not resolved, please enter OSD and set the volume to max.
  Menu ->system setup->Volume>100



• If problem is not resolved, please reset the monitor to test again.
  Menu ->system setup->Reset->Yes



• If it doesn't work, please test the monitor on another computer.