Hi-Fi, short for High Fidelity, refers to high-quality reproduction of sound that is very faithful to the original recording. Hi-Fi audio systems are designed to minimize noise and distortion and to accurately reproduce the nuances of the original audio source.
You can use Hi-Fi in the Xiaomi smartphone based on the following steps:
1. Plug in the wired headphone;
2. Tap [Settings];
3. Tap [Sound & vibration];
4. Tap [Sound effects];
5. Select [Hi-Fi audio].