Samsung SCH-S960RWBTFN - Manual (Page 460)

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 common sense recommendations when
using any portable audio device:
• Always turn the volume down before plugging the earphones into an audio
source.
• Set the volume in a quiet environment and select the lowest volume at
which you can hear adequately.
• Be aware that you can adapt to higher volume settings over time, not
realizing that the higher volume may be harmful to your hearing.
• 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.
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