noun
parabolic reflector; sound collector
A device that collects and focuses sound waves, often using a parabolic dish. Used in nature observation, surveillance, or audio recording.
野鳥観察に集音機を使うと、遠くのさえずりもよく聞こえる。
When you use a parabolic reflector for birdwatching, you can hear even distant chirps clearly.