Samsung SCH-I905ZKAUSC - Manual (Page 144)

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Do not use harsh chemicals, cleaning solvents, or strong
detergents to clean the mobile device. Wipe it with a soft
cloth slightly dampened in a mild soap-and-water solution.
Shock or vibration
Do not drop, knock, or shake the mobile device. Rough
handling can break internal circuit boards.
Paint
Do not paint the mobile device. Paint can clog the device’s
moving parts or ventilation openings and prevent proper
operation.
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 cell phones, 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 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.