speaking trumpet

A megaphone (of the older, non-electric kind).

日本語の意味

昔ながらの非電動拡声器、つまり従来型の拡声器

The harbor master raised his speaking trumpet and shouted the ship's new berthing instructions to the crew.

港の係員はラッパ型の拡声器を掲げ、乗組員に新しい係留指示を大声で伝えた。

意味（1）

A megaphone (of the older, non-electric kind).

speaking trumpets

（ plural ）