Just as the modern "talkies" become inaudible motion pictures when the sound apparatus goes out of order, so the Divine Hand, by some strange miracle, stifled the earthly bustle.
"Autobiography of a YOGI"
Paramhansa Yogananda
The other walkie-talkies allowed everybody to speak at once.
"Space Tug"
Murray Leinster
They had their walkie-talkies turned off and would be subject only to his orders if an emergency arose.
"Space Platform"
Murray Leinster