犬いぬ笛ぶえ

noun

dog whistle

A whistle that produces a high-frequency sound audible to dogs but often inaudible to humans, used for training or calling dogs.

• 犬いぬ笛ぶえを吹ふくと、遠とおくにいた犬いぬが走はしって戻もどってきた。

  When I blew the dog whistle, the dog that was far away came running back.