The mosquito buzz comes from the rapid beating of the insect's wings, which produces a distinctive high frequency whine that changes pitch as it moves. Recordings and synthesized versions of that whine have long been used in cartoons, comedy sketches and prank videos because the reaction is universal. Online, short loops of the sound became popular for trolling friends, adding fake insects to quiet scenes, and exaggerating summer annoyance. Its length makes it easy to loop seamlessly, which is why it remains a go-to pest sound effect.