1, enter the "Settings" page of the mobile phone. You can find the icon of the Settings application on the home screen, which is a gear icon.
2. Click the "Call" option to enter the call setting page.
3. On the call setting page, find the "noise reduction" option.
4. Click the "Noise Reduction" option to enter the noise reduction setting page.
5. On the noise reduction setting page, find the "Turn on noise reduction" switch and turn it on.