No sound, low sound level

  • Check that the connected device is turned on.
  • Adjust the volume of the headset and the connected device. Turn up the volume if it is too low.
  • If you are connecting a computer to the headset, make sure the audio output setting of the computer is set for the USB audio box.
  • Check that the 4-pole mini plug of the headset is securely inserted into the mini jack on the USB audio box.
  • Restart the connected device.


  • Connection is not guaranteed with the USB ports of TVs, etc.