Voiced Consonants? Unvoiced Consonants?

A consonant is a sound that causes two points of your mouth to come into contact, in three locations—the lips, the tip of the tongue, and the throat. A consonant can either be unvoiced (whispered) or voiced (spoken), and it can appear at the beginning, middle, or end of a word.
You'll notice that for some categories, a particular sound doesn't exist in English