Unable to switch the left and right channels.
During playback, press the multi-function button 3 times consecutively, holding the button down at the third push ().
When the sound volume reaches minimum, you will hear a warning beep. Continue to press the button for about 5 seconds. After channels are switched, you will hear a beep from the left ear side (left channel).
- Press the button 3 times with short intervals between each press (about 0.4 seconds) so the operations will be recognized as being consecutive.