Those are called "lip mics" or "commentator's lip microphones." These mics are much more common in Europe and were designed by the BBC in the 1930s to block out the noise generated by the crowd at ...

“St. Johnstone fans not happy in front of me, I don’t care,” said the commentator following the goal. “Fella, see that microphone, I’ll ram that so far up your arse you’ll never get ...