Managing sound and video settings during Teams meetings and calls for optimal communication
Thank you for reaching out,
I understand teams does not recognize your external Mic device.
We can first ensure the teams app is up to date and also try using Teams on the web ( teams.live.com) to see if the device recognized on the web.
Here are some solutions to help you resolve the device mic issue.
Check privacy settings: To use your mic in Teams, you might need to change privacy settings on your device or on the web to give Teams access to it.
On your device, go to Settings > Privacy & security. Select Microphone. Turn on the Microphone access toggle. Turn on the Let apps access your microphone toggle. If Microsoft Teams appears here, make sure its toggle is turned on. Turn on the Let desktop apps access your microphone toggle. Close all apps and restart your device.
On the web:
Go to Settings > Privacy and Security > Site Settings > View permissions and data stored across sites. From here, enter “teams.microsoft.com” in the Search field. Open the "Microsoft.com" group and scroll down to find "teams.microsoft.com" and select it. Here, set the Microphone and Camera to Allow access to these devices.
see more details in the link below:
Regards.
Jackson.