Sony WI-1000XM2 Help Manual page 88

Help Guide
Wireless Noise Canceling Stereo Headset
WI-1000XM2
Optimizing the noise canceling function to suit the usage environment (NC Optimizer)
This function optimizes the noise canceling function by detecting the pressure change.
It is recommended that you run the NC Optimizer function when the air pressure changes in an airplane, etc.
Put on the headset with the power turned on.
1
Press and hold the C (custom) button for about 2 seconds until you hear the voice guidance say,
2
"Optimizer start".
Test signals will be heard during the optimization. When the optimizing process is finished, you will hear the voice
guidance say, "Optimizer finished".
About the instruction manual video
Watch the video to find out how to use the NC Optimizer function.
https://rd1.sony.net/help/mdr/mov0008/h_zz/
Hint
If you are on an airplane, we recommend that you turn on the NC Optimizer function at the stable flight condition.
The condition optimized with the NC Optimizer function is retained until the NC Optimizer function is used again. It is
recommended that you turn on the NC Optimizer function once again after getting off the airplane and so on.
The NC Optimizer can also be operated from the "Sony | Headphones Connect" app.
Note
Put on the headset under the actual usage conditions when running the NC Optimizer. It is recommended that you do not touch
the headset while the NC Optimizer is running.
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