Cannot see Mic Mode in Control Center

You need to actually be on a call (Phone or FaceTime) to see Mic Mode in Control Center. It will show up in the upper right-hand corner of the Control Center overlay.

Hey there krileyms, 

We may need to gather some additonal details from you, to ensure the community has a full understanding of what you're trying to accomplish. You've mentioned trying to add an option to Control Center. Following Use and customize Control Center on iPhone, will ensure you are able to add or remove all available options.

You seem to be having a problem with your iPhone's mic. If so, following this next guide will help to resolve mic issues.

If the microphones on your iPhone aren't working

If neither of this address your issue, please tell us more about what you are trying to do. The more detail you're able to share, the better equipped the community will be to assist you.

Have a good one!