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Optimus SYSTEM 739 - Using Headphones; Listening Safety Guidelines

Optimus SYSTEM 739
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6
USING HEADPHONES
You can use headphones (not sup-
plied) to listen in privacy. Insert the
headphones
1
/
8
-inch plug into the
PHONES
jack on the front of the
system.
Notes:
Your local RadioShack store sells
a wide selection of headphones.
Plugging in headphones automati-
cally disconnects the speakers.
Listening Safely
To protect your hearing, follow these
guidelines when you use headphones.
Set the volume to the lowest set-
ting before you begin listening.
After you begin listening, adjust
the volume to a comfortable level.
Do not listen at extremely high
volume levels. Extended high-
volume listening can lead to
permanent hearing loss.
Once you set the volume, do not
increase it. Over time, your ears
adapt to the volume level, so a
volume level that does not cause
discomfort might still damage your
hearing.
13-1292.fm Page 6 Wednesday, July 14, 1999 6:37 PM

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