イヤプロテクター

She wears custom-fitted イヤプロテクター when she goes to the shooting range.

The concertgoer tucked his イヤプロテクター into his pocket, ready for the loud music.

Motorcycle riders often use イヤプロテクター to reduce wind noise.

「工事現場では、耳を守るために必ずイヤプロテクターをつけてくださいね！」