If you can imagine what it sounds like to be surrounded by thousands of jackhammers for about 90 minutes straight, then you may be able to imagine what it's like to sit in a crowd full of vuvuzelas.
Experts say the ubiquitous, loud buzzing horns that have become part of this year's World Cup lore may be hazardous to fans' hearing.
Researchers from the University of Pretoria in South Africa recently measured the sound emitted from the plastic horn to be 131 decibels at its opening.
nullSounds that intense, according to the researchers, put people at risk for noise-induced hearing loss.
"Levels as high as what this instrument is producing is unsafe for any prolonged