⚠️ Before moving forward, you can verify the following self-troubleshooting. When contacting the email support via web@fifine.cc, be sure to include your test results.
Is the microphone detected by your computer?
On Windows or macOS, check whether the device appears as “USB PnP Audio Device” or “FIFINE K690 Microphone”, or if it is listed as an Unknown Device.If the microphone is detected and the input level responds when you speak, but no sound is heard:
Please confirm that the correct output device (your computer speakers or the microphone) is selected in both the system sound settings and the software you are using.If the microphone appears as an unknown device:
Have you tested it on another computer?
Have you tried updating or reinstalling the driver multiple times on different systems?