When speaking, the sounds will generate vibrations in the people mouth and jawbone, then these vibrations will reach the skull. 當人說話的時候，聲音會在人的嘴巴和顎骨處產生振動，并傳達到頭骨處，因此，骨傳導麥克風能被佩戴到頭部的任何地方。
But they did not test the jawbone, and that, say the Russians, is positively male. 但是他們沒有測試下顎骨，而且那是正確地是男性的，俄羅斯人說。