Zte Blade 10 User Manual page 71

CAUTION:
Do not turn on the Hearing aids option unless you use a hearing aid
with a telecoil. Using this setting without a hearing aid or with a
hearing aid without a telecoil may be harmful to your hearing.
Use Noise Reduction
With noise reduction, your phone can use the auxiliary microphone
to suppress your background noise during calls.
1. From the home screen, touch > > Settings >
Accessibility.
2. Touch Noise reduction to enable or disable this feature.
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