Radio Shack BTX-123 ユーザーズマニュアル

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10
Listening Safely
To protect your hearing, follow these
guidelines when you use an ear-
phone or headphones:
• Do not listen at extremely high
volume levels. Extended high-
volume listening can lead to
permanent hearing loss.
• Set the volume to the lowest
setting before you begin listen-
ing. After you begin listening,
adjust the volume to a comfort-
able level.
• 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.
Traffic Safety
Do not use an earphone or head-
phones with your transceiver when
operating a motor vehicle or riding a
bicycle in or near traffic. Doing so
can create a traffic hazard and
could be illegal in some areas.
If you use an earphone or head-
phones with your transceiver while
riding a bicycle, be very careful. Do
not listen to a continuous broadcast.
Even though some earphones/
headphones let you hear some out-
side sounds when listening at nor-
mal volume levels, they still can
present a traffic hazard.
Connecting an Extension Speaker
In a noisy area, an extension speak-
er or an amplified speaker might pro-
vide more comfortable listening. You
can find a selection of speakers at
your local RadioShack store.
Pull up the attached plug then plug
the speaker cable’s 
1
/8-inch plug
into your transceiver’s EAR jack.
This disconnects the internal speak-
er.
Using the Belt Clip
You can attach the supplied belt clip
to the transceiver for hands-free car-
rying when you are on the go.