He put his hand over the speaker for a moment.

He put a hand over the speaker to listen to the doctor.

All of a sudden, George called for attention over the speaker.

And the words he feared came back over the speaker.

Jack was just getting comfortable when he heard his name over the speaker.

She kept on pushing until a voice came over the speaker.

Sam Carter's voice came over the speaker as if he were in the room.

We were peaceful enough, waiting to hear something from you come over the speaker.

His voice came over the speaker in the command hut.

After an eternity the chairman's voice came over the speaker.