3 ms·Drones tend to have a discordance and dimensionality to the sound that lawn equipment lacks.by jcims 6y agoDrones tend to have a discordance and dimensionality to the sound that lawn equipment lacks.jbay808 6y agoYes definitely; it comes from the four motor whines all slightly out of tune with each other. It's a very annoying and alien sound.nitrogen 6y agoIt also triggers survival instincts due to the similarity with the sound of swarming insects.