My wife called our family doctor and handed me the phone.
megaphone
A cone-shaped device used to gather and direct the voice to increase its volume over a distance; also called a 传声筒chuánshēngtǒng.
spokesperson
(metaphorical) A person who speaks on behalf of another or serves as a mouthpiece, often implying they lack their own authority; also called a 传声筒chuánshēngtǒng.
