LG VS740 Specification - Page 270

268 Safety G Do not turn the volume up to block out noisy surroundings. If you choose to listen to your portable device in a noisy environment, use noise-cancelling headphones to block out background environmental noise. G Limit the amount of time you listen. As the volume increases, less time is required before your hearing could be affected. G Avoid using headphones after exposure to extremely loud noises, such as rock concerts, that might cause temporary hearing loss. Temporary hearing loss might cause unsafe volumes to sound normal. G Do not listen at any volume that causes you discomfort. If you experience ringing in your ears, hear muffled speech or experience any temporary hearing difficulty after listening to your portable audio device, discontinue use and consult your doctor. You can obtain additional information on this subject from the following sources: American Academy of Audiology 11730 Plaza American Drive, Suite 300 Reston, VA 20190 Voice: (800) 222-2336 Email: [email protected] Internet: www.audiology.org National Institute on Deafness and Other Communication Disorders National Institutes of Health 31 Center Drive, MSC 2320 Bethesda, MD USA 20892-2320 Voice: (301) 496-7243 Email: [email protected] Internet: http://www.nidcd.nih.gov/health/hearing