If the Xiaomi Smart Camera C302 makes noise during voice calls, please refer to the following steps:
1. During a call, keep your phone and the camera at least 10 meters apart. When devices are too close, it can lead to echoing or howling due to feedback from the microphone and speaker. This distance helps minimize interference and ensures clearer communication.
2. Check for nearby electronic devices that can cause electromagnetic interference. Items such as routers, microwaves, or other wireless devices can disrupt audio quality, leading to howling or other unwanted noise during calls.
3. If the noise persists, try making calls in different locations to determine whether the issue is specific to certain areas where interference is more pronounced.