Why does the Xiaomi 17 Ultra make a noise when pressing the phone while playing music?

If a sound is heard when pressing the Xiaomi 17 Ultra during music playback, please refer to the following explanation:
1. The Xiaomi 17 Ultra includes a pressure relief structure integrated near the bottom speaker outlet to balance internal air pressure.
2. When pressing the device, temporary airflow changes can occur, producing a slight sound response.
3. If the pressure relief area is partially blocked by dust or foreign objects, airflow can become more noticeable during compression.
4. Please check and gently clean the speaker outlet area to ensure it is unobstructed.
5. The audio system undergoes strict quality and performance testing before leaving the factory. This phenomenon does not indicate a defect. Please feel confident in using your device.