Basic operation method to increase microphone volume in oppor15

Want to increase the microphone volume in OPPO R15, but don’t know where to start? don’t worry! PHP editor Xiaoxin will provide a simple and easy-to-understand step-by-step guide in this article to help you easily solve the problem of low microphone volume. Read on to learn how to make your voice clear and loud on calls and recordings!

1. Don’t block the phone with your hands when we answer the phone.

2. You can use a headset to improve call quality

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