Radio Shack Headphones 33 1196 User Guide

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33-1196  
OWNER’S MANUAL — Please read before using this equipment.  
Thank you for purchasing RadioShack Rechargeable  
900MHz Wireless Stereo Headphones. Your headphones  
use the 900MHz band to deliver high-quality stereo sound to  
almost anywhere in or around your home. Your headphones  
use PLL (Phase-Locked Loop) circuitry and have a built-in  
antenna to give you precise tuning, so you can enjoy your  
favorite sounds without disturbing others anywhere around  
your yard or house — up to 150 feet away from your stereo.  
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Choosing a Location .................. 2  
Using AC Power ......................... 2  
Installing Batteries ...................... 2  
Charging Rechargeable  
Batteries ..................................... 3  
Recycling Ni-Cd Batteries ....... 4  
Connecting to an Audio Source . 4  
Listening Safely ....................... 5  
Using Your Headphones ............ 5  
Troubleshooting ......................... 6  
The FCC Wants You to Know .... 6  
Care ........................................... 7  
Service and Repair ..................... 7  
Specifications ............................. 7  
Parts and Accessories ............... 8  
Accessories ............................. 8  
POWER indicator —  
lights red when the AC  
adapter is correctly plugged  
in and you press POWER.  
"+/2146#06"  
#
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If an icon appears at the end of a  
paragraph, go to the box on the  
side of that page with the  
corresponding icon for pertinent  
information.  
— Warning  
— Important  
#
Rý  
. — Caution  
± — Note  
CHARGE Indicator — lights green when  
the batteries are charging.  
© 2002 RadioShack Corporation.  
All Rights Reserved.  
RadioShack and RadioShack.com are trademarks  
used by RadioShack Corporation.  
 
If the headphones’ range decreases, you do not hear sound  
from the audio source, or the headphones’ POWER/BATT  
LOW indicator is blinking, replace the alkaline batteries or  
recharge the rechargeable batteries. Rý  
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Dispose of old batteries promptly  
and properly. Do not burn or bury  
them.  
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Your transmitter has a built-in charger to charge  
rechargeable batteries. When the headphones are not in  
use, the rechargeable battery can be continuously charged  
over several days. The batteries can be charged with the  
transmitter set to on or off.  
ries  
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You can only charge rechargeable  
batteries. Do not attempt to charge  
alkaline batteries.  
1. Turn off the headphones and remove the battery  
compartment cover on the left earpiece.  
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2. Select ALK/RCH to RCH.  
3. Place the rechargeable batteries in the compartment  
according to the polarity symbols (+ and –) marked in  
the compartment.  
CinRchrgea  
4. Replace the cover.  
5. Lift the charging compartment cover on the back of  
transmitter to open and pull out the charging cord. .#  
."%#76+10".  
The charging compartment cover  
on the transmitter is hinged. Do not  
attempt to remove it.  
DC IN 4.5V  
Charging  
Cord  
Red  
DC IN 12V  
White  
1/8 to 1/4 inch  
Stereo Adapter  
Phono to 1/8 inch  
Stereo Adapter  
6. Plug the charging barrel plug into the DC IN 4.5V jack on  
the left earpiece.  
3
 
7. The batteries automatically begin charging and the  
transmitter’s CHARGE indicator lights green.  
Before using your headphones for the first time, you must  
charge the batteries for at least 24 hours. When the  
batteries have been completely discharged, it takes about  
12 hours to completely recharge the batteries.  
When charging is complete, unplug the charge cord. The  
CHARGE indicator turns off.  
4'%;%.+0)"0+/%&"$#66'4+'5  
The EPA certified RBRC® Battery Recycling  
Seal on the nickel-cadmium (Ni-Cd) battery  
indicates RadioShack is voluntarily participating  
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 bans/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.  
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nect  
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Do not connect the transmitter to  
You can connect the transmitter to your audio source’s left  
and right audio output jacks or the headphone jack. .  
S
o
urce  
your audio source’s speaker  
output. Doing so could damage the  
transmitter and audio source.  
1. Connect one end of the supplied audio patch cord to  
the transmitter’s audio jacks (white plug to L AUDIO IN  
and red plug to R AUDIO IN).  
2. If you are using the audio source’s output jacks,  
connect the white and red plugs at the other end of the  
patch cord directly to the audio source’s corresponding  
left (white) and right (red) audio jacks.  
If you are using your audio source’s stereo headphone  
jack, connect the patch cord’s white and red plugs to  
the white and red phono jacks on the Phono to 1/8-inch  
supplied adapter.  
3. If your audio source has a 1/8-inch headphone jack,  
insert the adapter’s 1/8-inch stereo plug into the audio  
source’s HEADPHONE jack.  
4
 
If your audio source has a 1/4-inch headphone jack,  
insert the adapter’s 1/8-inch stereo plug into the back of  
the supplied 1/8-to-1/4-inch stereo adapter. Then insert  
the adapter into the audio source’s HEADPHONE jack.  
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To protect your hearing, follow these guidelines when you  
use your headphones.  
• Set the volume to the lowest setting 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.  
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You can use multiple sets of headphones with each  
transmitter. We do not recommend using multiple  
transmitters in the same area.  
• If the POWER/BATT LOW  
indicator is blinking, the battery  
level is low and you must replace  
the alkaline batteries or recharge  
the rechargeable batteries before  
use.  
1. Press POWER on the transmitter. The transmitter’s  
POWER indicator lights red. Turn on the audio source.  
• If you connected the transmitter  
to an audio source’s headphone  
jack, set the audio source’s  
volume control to its mid-  
position, then adjust VOLUME  
on the headphones to the  
desired level.  
2. To turn on the headphones, slide POWER away from  
the headband. The POWER/BATT LOW indicator lights  
red.  
3. Put on the headphones and adjust VOLUME to the  
desired listening level.  
4. To turn off the headphones, slide POWER toward the  
• To preserve battery life, be sure  
to turn off the headphones when  
you are not using them.  
headband.  
5. To turn off the transmitter, press the power switch. The  
POWER indicator turns off.  
• If reception is poor even when  
the batteries are fully charged  
and you are near the transmitter,  
try moving the transmitter to a  
higher location or moving it away  
from the audio source.  
adphones  
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• If you are not using the  
transmitter, disconnect the  
adapter.  
• Turn off the headphones before  
turning off the transmitter.  
5
 
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We do not expect you to have problems with your  
Troublesh  
headphones, but if you do, these suggestions might help.  
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oting  
Be sure the headphones are turned on.  
Replace or charge the headphones’ batteries.  
Be sure the AC adapter is plugged in and has power.  
Be sure all cables are securely connected.  
Be sure the audio source is turned on.  
No sound  
Be sure the source’s volume control is turned up.  
Adjust the headphones’ volume control.  
Change the position of the transmitter.  
If you connected the transmitter to an audio source’s  
headphone jack, reduce the audio source’s volume.  
Distorted  
audio  
Charge or renew the headphones’ batteries.  
Change the position of the transmitter.  
6*'"(%%"9#065";17"61"-019  
This equipment has been tested and found to comply with  
the limits for a Class B digital device, pursuant to Part 15 of  
the FCC Rules. These limits are designed to provide  
reasonable protection against harmful interference in a  
residential installation. This equipment generates, uses and  
can radiate radio frequency energy and, if not installed and  
used in accordance with the instructions, may cause  
harmful interference to radio communications.  
However, there is no guarantee that interference will not  
occur in a particular installation. If this equipment does  
cause harmful interference to radio or television reception,  
which can be determined by turning the equipment off and  
on, the user is encouraged to try to correct the interference  
by one or more of the following measures:  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and  
receiver.  
• Connect the equipment into an outlet on a circuit  
different from that to which the receiver is connected.  
• Consult your local RadioShack store or an experienced  
radio/TV technician for help.  
• If you cannot eliminate the interference, the FCC  
requires that you stop using your headphones.  
6
 
Changes or modifications not expressly approved by  
RadioShack may cause interference and void the user’s  
authority to operate the equipment.  
Limited Ninety-Day Warranty  
This product is warranted by RadioShack  
against manufacturing defects in material and  
workmanship under normal use for ninety (90)  
days from the date of purchase from  
RadioShack company-owned stores and autho-  
rized RadioShack franchisees and dealers. EX-  
CEPT AS PROVIDED HEREIN, RadioShack  
MAKES NO EXPRESS WARRANTIES AND  
ANY IMPLIED WARRANTIES, INCLUDING  
THOSE OF MERCHANTABILITY AND FIT-  
NESS FOR A PARTICULAR PURPOSE, ARE  
LIMITED IN DURATION TO THE DURATION  
OF THE WRITTEN LIMITED WARRANTIES  
CONTAINED HEREIN. EXCEPT AS PRO-  
VIDED HEREIN, RadioShack SHALL HAVE  
NO LIABILITY OR RESPONSIBILITY TO CUS-  
TOMER OR ANY OTHER PERSON OR EN-  
TITY WITH RESPECT TO ANY LIABILITY,  
LOSS OR DAMAGE CAUSED DIRECTLY OR  
INDIRECTLY BY USE OR PERFORMANCE  
OF THE PRODUCT OR ARISING OUT OF  
ANY BREACH OF THIS WARRANTY, IN-  
CLUDING, BUT NOT LIMITED TO, ANY DAM-  
AGES RESULTING FROM INCONVENIENCE,  
LOSS OF TIME, DATA, PROPERTY, REVE-  
NUE, OR PROFIT OR ANY INDIRECT, SPE-  
CIAL, INCIDENTAL, OR CONSEQUENTIAL  
DAMAGES, EVEN IF RadioShack HAS BEEN  
ADVISED OF THE POSSIBILITY OF SUCH  
DAMAGES.  
%#4'  
Keep the headphones dry; if they get wet, wipe them dry  
immediately. Use and store the headphones only in normal  
temperature environments. Handle the headphones  
carefully; do not drop them. Keep the headphones away  
from dust and dirt, and wipe them with a damp cloth  
occasionally to keep them looking new.  
5'48+%'"#0&"4'2#+4  
If your headphones are not performing as they should, take  
them to your local RadioShack store for assistance.  
Modifying or tampering with the headphones’ internal  
components can cause a malfunction and might invalidate  
their warranty.  
Some states do not allow limitations on how  
long an implied warranty lasts or the exclusion  
or limitation of incidental or consequential dam-  
ages, so the above limitations or exclusions  
may not apply to you.  
52'%+(+%#6+105  
In the event of a product defect during the war-  
ranty period, take the product and the  
RadioShack sales receipt as proof of purchase  
date to any RadioShack store. RadioShack will,  
at its option, unless otherwise provided by law:  
(a) correct the defect by product repair without  
charge for parts and labor; (b) replace the prod-  
uct with one of the same or similar design; or  
(c) refund the purchase price. All replaced parts  
and products, and products on which a refund  
is made, become the property of RadioShack.  
New or reconditioned parts and products may  
be used in the performance of warranty service.  
Repaired or replaced parts and products are  
warranted for the remainder of the original war-  
ranty period. You will be charged for repair or  
replacement of the product made after the expi-  
ration of the warranty period.  
This warranty does not cover: (a) damage or  
failure caused by or attributable to acts of God,  
abuse, accident, misuse, improper or abnormal  
usage, failure to follow instructions, improper  
installation or maintenance, alteration, lightning  
or other incidence of excess voltage or current;  
(b) any repairs other than those provided by a  
RadioShack Authorized Service Facility; (c)  
consumables such as fuses or batteries; (d)  
cosmetic damage; (e) transportation, shipping  
or insurance costs; or (f) costs of product re-  
moval, installation, set-up service adjustment or  
reinstallation.  
Transmitter:  
Carrier Frequency ............................................. 911.4 – 915.6 MHz  
Power Source ...................................................... 12V DC, 250 mA  
Modulation Method ................................................. FM Modulation  
Frequency Response ................................... 80 Hz – 20 kHz (6 dB)  
Receiver:  
Sensitivity .................................................... <2µV (with 20 dB S/N)  
S/N Ratio (@ –50dBm) ...................................... >60 dB (A weight)  
Audio Distortion ....................................................................... <2%  
Max. Audio output ................................................................ >8 mW  
Power requirement ......... 3 AAA alkaline or rechargeable batteries  
Specifications are typical; individual units might vary. Specifications  
are subject to change and improvement without notice.  
This warranty gives you specific legal rights,  
and you may also have other rights which vary  
from state to state.  
RadioShack Customer Relations, 200 Taylor  
Street, 6th Floor, Fort Worth, TX 76102  
12/99  
7
 
2#465"#0&"#%%'5514+'5  
Parts and accessories are available at your local RadioShack store. Accessories are also  
the following. Visit your local RadioShack store or obtain a RadioShack catalog for a more  
complete listing of available accessories.  
#%%'5514+'5  
Tired of the  
batteries dying  
right in the  
middle of your  
favorite song?  
RadioShack’s  
wide variety of  
rechargeable  
batteries let  
So you and your  
roommate can  
both enjoy the  
same music in  
different  
locations,  
RadioShack  
offers a complete  
line of additional  
wireless  
you control the power to your  
headphones so your favorite music is  
never interrupted again.  
headphones for  
your wireless headphone system.  
You don’t want  
Just in case your  
to wait to use  
your new  
AC adapter  
magically went  
headphonesuntil  
missing or appears  
the batteries  
damaged,  
charge? You  
RadioShack  
don’t have to! To  
carries  
let you use your headphones  
immediately, RadioShack carries a full  
line of alkaline batteries.  
replacement AC adapters for every voltage.  
Don’t forget to select the correct  
Adaptaplug!  
For the best  
possible stereo  
sound, check out  
RadioShack’s  
awesome selection  
of audio cables. The  
best connection  
makes all the  
difference in your  
sound.  
33-1196  
AO0093AAA1  
05A02  
Printed in China  
RadioShack Corporation  
Fort Worth, Texas 76102  
 

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