The selection of toys is due to the recommendation of the American Academy of Otolaryngology known exposure to noise exceeds 85 decibels can cause hearing damage.
"In general, the toy is safe if used properly, but sometimes the children put the toys that sing too close to his ear," said Dr. Hamid Djalilian, professor of otolaryngology and director of Neurology at the University of California, Irvine, as quoted from HealthDay, Friday (23 / 12 / 2011).
Dr. Djalilian said this because of hearing problems can occur if a toy is noisy or loud noises brought near to your ear.
"Children are very sensitive to loud noises and high pitched. Unfortunately, hearing loss due to noise is permanent and can not be cured," he said.
Dr. Djalilian recommend that if parents want to buy toys for their children speak, note the location of the speakers. Better to choose toys that the speakers are under the toy, and not have to lift up the toys.
"You could also try holding a toy as a child and listen to his voice, if you feel ear pain or his voice is too annoying, maybe the sound is too loud to children," said Dr. Djalilian.
Researchers measured the noise levels of 24 and 10 popular toys with the loudest voice to test it in the soundproof booth. These toys are known to have 90-100 decibel noise power even more, the equivalent noise power mower or a subway. And researchers to test the sound level of toys with a distance of 12 inches (30.5 cm) which is equivalent to the long arm of toddlers.
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