Noise canceling effect is not noticeable

The following describes possible solutions when the noise canceling effect is not noticeable. Follow the steps below to check whether the problem can be resolved.
The noise canceling function may have been turned off.
Perform the following setting after establishing connection with the device.
Setting the noise canceling function
-
Tap the touch sensor on the R earphone once quickly

1x
Turning off the function
Listening to ambient sound
Noise canceling function
Touch sensor area
The function switches in order.
The audio guidance can be heard when the function is toggled.
The setting of the noise canceling function switches to OFF once the power is turned off. Perform the setting accordingly as necessary.