Samsung Mondi Manual Do Utilizador

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Health and Safety Information       136
Responsible Listening
Caution!: Avoid potential hearing loss.
Damage to hearing occurs when a person is exposed to loud 
sounds over time. The risk of hearing loss increases as sound is 
played louder and for longer durations. Prolonged exposure to 
loud sounds (including music) is the most common cause of 
preventable hearing loss. Some scientific research suggests that 
using portable audio devices, such as portable music players and 
cellular devices, 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 
potential hearing problem varies. Additionally, the amount of 
sound produced by a portable audio device varies depending on 
the nature of the sound, the device settings, and the headphones 
that are used. As a result, there is no single volume setting that is 
appropriate for everyone or for every combination of sound, 
settings and equipment. 
You should follow some commonsense 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. By blocking background environment noise, noise cancelling 
headphones should allow you to hear the music at lower volumes than 
when using earbuds.
• 
Limit the amount of time you listen. As the volume increases, less time 
is required before you hearing could be affected.
• 
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.
• 
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.
SWD-M100.book  Page 136  Monday, March 8, 2010  8:09 AM