Sony MDR-MV1 Open-Back Reference Monitor Headphones - Manual (Page 113)

Help Guide
Wireless Noise Canceling Gaming Headset/Wireless Gaming Headset
INZONE H9/INZONE H7
The effect of noise canceling is not sufficient. (INZONE H9 only)
Make sure the noise canceling function is turned on. You can check the noise canceling settings with “INZONE Hub”.
Put on the headset snugly to a comfortable position.
The noise canceling function is effective for noise in low frequency ranges in locations such as offices, near air
conditioners, on trains, and on planes and is not as effective for noise in higher frequencies, such as human voices.
Related Topic
What is noise canceling? (INZONE H9 only)
Using the noise canceling function (INZONE H9 only)
Wearing the headset
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