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The American Speech-Language-Hearing Association is working with companies and government officials on setting rules for use of portable music devices. The group says the best way to protect your hearing is to, limit listening time and use earphones that block out foreign noises.

The American Speech-Language-Hearing Association is working with companies and government officials on setting rules for use of portable music devices. The group says the best way to protect your hearing is to ,limit listening time and use earphones that block out foreign noises.

The American Speech-Language-Hearing Association is working with companies and government officials on setting rules for use of portable music devices. The group says the best way to protect your hearing is to limit listening time and use earphones that block out foreign noises.

The American Hearing Association Speech - Language - is working with companies and government officials on setting rules for use of portable music devices group says The . The best way to protect your hearing is to limit listening time, and use earphones that block out foreign noises.

The American Speech-Language-Hearing Association is working with companies and government officials on setting rules for use of portable music devices. The group says the best way to protect your hearing is to ,limit listening time and use earphones that block out foreign noises.