Casio Mobile E-mailer (Version 1.0) User's Guide download pdf (Page 304)

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Safety

players and cellular telephones, at high volume settings for long

durations may lead to permanent noise-induced hearing loss. This

includes the use of headphones (including headsets, earbuds and

Bluetooth or other wireless devices). Exposure to very loud sound

has also been associated in some studies with tinnitus (a ringing in

the ear), hypersensitivity to sound and distorted hearing. Individual

susceptibility to noise-induced hearing loss and other potential

hearing problems varies.

The amount of sound produced by a portable audio device varies

depending on the nature of the sound, the device, the device settings

and the headphones. You should follow some common sense

recommendations when using any portable audio device:

Set the volume in a quiet environment and select the lowest volume •

at which you can hear adequately.

When using headphones, turn the volume down if you cannot hear •

the people speaking near you or if the person sitting next to you can

hear what you are listening to.

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.

Limit the amount of time you listen. As the volume increases, less •

time is required before your hearing could be affected.

Avoid using headphones after exposure to extremely loud noises, •

such as concerts, that might cause temporary hearing loss. Temporary

hearing loss might cause unsafe volumes to sound normal.

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.

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Casio Mobile E-mailer (Version 1.0) User's Guide Page 304