Why does the Xiaomi 17 Ultra phone case produce a resonant noise when the phone vibrates?
If the Xiaomi 17 Ultra phone case produces a resonant noise when the phone vibrates, please refer to the following explanation:
1. Some third-party cases can have larger fitting tolerances, resulting in slight gaps between the case and the device body.
2. When the internal motor generates vibration feedback, the case can resonate along with the device, producing additional sound.
3. This acoustic effect is related to accessory fit rather than the phone’s vibration system.
4. For optimal compatibility and reduced resonance, it is recommended to use official Xiaomi protective cases.
5. The device itself undergoes strict vibration and acoustic testing before shipment. Please use it with confidence.
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