Radio Shack Pro-164 - Headphones And Speakers

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The EPA certied RBRC© Battery
Recycling Seal on the nickel-cadmium
(Ni-Cd) battery indicates RadioShack
voluntarily participates in an industry
program to collect and recycle these batteries
at the end of their useful life, when taken out
of service in the United States or Canada.
The RBRC program provides a convenient
alternative to placing used Ni-Cd batteries into
the trash or the municipal waste stream, which
may be illegal in your area. Please call 1-800-
THE-SHACK (1-800-843-7422) for information
on Ni-Cd battery recycling and disposal
band/restrictions in your area. RadioShack’s
involvement in this program is part of the
company’s commitment to preserving our
environment and conserving our natural
resources.
External Power
You can power your scanner using a 9V, 400mA
AC/DC adaptor and size C adaptaplug
TM
(neither
supplied).
To use an external power source:
1. Always connect the adapter
(not supplied) to the
scanner rst.
2. Plug the adapter into the
power source.
3. To disconnect, unplug the
adapter from the power
source rst.
If you use an external power source for
regular operation, install alkaline batteries for
emergencies. Rechargeable batteries will self-
discharge, even when not used, and could have
no usable power.
Caution: You must use a Class 2 power source
that supplies 9V DC and delivers at least
400 mA. Its center tip must be set to positive
and its plug must t the scanner’s PWR DC 9V
jack. Using an adaptor that does not meet these
specications could damage the scanner or the
adaptor.
Headphones and Speakers
You can plug headphones or an amplied
speaker (neither included) into your scanner’s
headphone jack. This automatically mutes the
scanner’s speaker.
Even though some earphones/headphones let
you hear some outside sounds when listening
at normal volume levels, they still can present a
trafc hazard.
To protect your hearing, follow these earphone
or headphones guidelines:
• 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
listening. Turn on the scanner, and adjust
the volume to a comfortable level.
• After 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.