The noise canceling function doesn't switch when I tap the left earbud of my wireless headset
The voice guidance feature is not activated and the noise canceling function does not switch, even though a tapping sound is heard.
Quickly (about 0.3 seconds) tap the left touch sensor of your headphones to change the noise canceling function.
NOTE: If contact with the touch sensor is too long, the left touch sensor activates Quick Attention Mode which allow the headphones to absorb surrounding sounds.