Vuvuzelas have been controversial. They have been associated with permanent noise-induced hearing loss, cited as a possible safety risk when spectators cannot hear evacuation announcements, and potentially spread colds and flu viruses on a greater scale than coughing or shouting. Commentators have described the sound as "annoying" and "satanic" and compared it with a stampede of noisy elephants, a deafening swarm of locusts,a goat on the way to slaughter and a giant hive full of very angry bees.
The sound level of the instrument has been measured at 127 decibels
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