In the Philippines, during Apocalypse, Brando had an earphone thing where they fed him lines.
He pulled a radio sender and receiver from a cabinet and held an earphone close to his temple, continuing to nod.
Crag called experimentally into the earphone, without answer.
The better way, though, is to buy an earphone made especially for wireless work.
Paul took off his selectorscope spectacles with the earphone attachments.
He could hear the mumble of voices through the earphone but could make no sense out of it.
Rick jumped for the radio unit the scientist held out, and plugged in the earphone.
All you need for this set are: a crystal detector, a tuning coil and an earphone.
He removed the little radio from his pocket, unplugged the earphone, and put the radio on top of the cereal.
Rick fell back and grabbed his radio unit, quickly plugging in the earphone.