Agree with both responses: contact throat mics are very difficult to process into decent audio, and Plantronics' history and rep are outstanding.
Another thought is to look at what motivational speakers, televangelists, CEO's, and other moving-around-the-stage talkers use these days. They look like a current version of the original Plantronics StarSet (for decades the gold standard in mobile mic technology), nearly invisible, sculpted to the curve of the face and jaw, outstanding audio, etc.
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