Sony NW-A25 How To Use Manual page 129

Help Guide
2. From the Home menu, select
3. Select [Quiet Mode].
[138] How to Use
Notes for using the noise canceling function
If the earbuds do not fit your ears, the effect of the noise canceling
function may be compromised. Adjust the earbuds to a position where
they fit well, and place them snugly in your ears.
Rubbing noises may occur while wearing headphones. This is not a
malfunction.
The noise canceling function mainly reduces noise in low frequency
bands and has no effect on noise in higher frequency bands. Note that
it does not cancel all sounds.
Do not cover the microphone part (
hands or other objects. Doing so may compromise the noise canceling
effect.
You may hear a slight hissing noise when the noise canceling function
is active. This is operational noise of the noise canceling function and
not a malfunction.
You may feel that the noise canceling function is not working or noise
is louder in quiet places or with certain types of noises. In this case,
deactivate the noise canceling function.
Mobile phones or smartphones may cause noise. If this occurs, keep
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Noise Canceling Using the Noise Canceling Function
http://helpguide.sony.net/dmp/nwa20/v1/en/print.html
[Noise Canceling].
) of the headphones with your
08/06/16 16:25