Perhaps with a wire running up inside his shirt to a tiny microphone somewhere.

A guy who looked about twenty years old began attaching tiny microphones to them.

He punctuated his last words by throwing the tiny microphone back at her.

It can then be read to the wearer through a tiny microphone in her ear.

He was talking through a tiny microphone sunk flush with the surface of the glass.

Pitt adjusted it to his head and spoke into the tiny microphone.

He touched the switch and spoke into the tiny microphone.

As they move, the dancers talk into tiny microphones attached to their bodies.

"Joe takes the pen," she said very softly, speaking into a tiny microphone.

Someone had been listening in on all her conversations with a tiny microphone.