If you're experiencing difficulties with your GSM-100 USB Microphone, here are some troubleshooting steps to try:

• Make sure the microphone is correctly connected to your computer or laptop using the USB cable.
• Verify that the microphone is chosen as your input device in the audio settings or software preferences.
• Ensure that the microphone's volume control knob is not muted and is turned up.
• Inspect the microphone and the USB cable for any potential interference or damage.
• If you're unable to resolve the issue through these steps, please get in touch with customer support.