Samsung SCH-R640 Cell Phone User Manual


 
Health and Safety Information 206
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.
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.