Radio Shack 3301197T 900MHz Wireless Headphone User Manual 33 1197 indd
RadioShack Corporation 900MHz Wireless Headphone 33 1197 indd
User Manual
Please read this user’s guide before
installing, setting up and using your new product
www.radioshack.com
33-1197
Rechargeable Analog Wireless
Stereo Headphones
Thank you for purchasing RadioShack Rechargeable
Analog Wireless Stereo Headphones. It is designed with
PLL (Phase-Locked Loop) circuitry and built-in antenna
for precise tuning. It uses the 900MHz band to deliver
high-quality stereo sound to almost anywhere in or
around your home, up to 150 feet away from your stereo.
Rechargeable Analog Wireless Stereo
Headphones
1/8-to-1/4-inch stereo adapter
1/8-inch stereo plug adapter
RCA cable
12V, 250mA AC/DC adapter
User’s Guide
what’s included
You need to power the transmitter by the
supplied 12V, 250mA AC/DC adapter when you
use the headphones.
Plug the supplied AC adapter’s barrel plug
into the transmitter’s DC IN 12V jack, then
plug the adapter into a standard AC outlet.
• Use only 12V DC,250mA AC/DC
adapter to power the transmitter.
• Always connect the AC/DC adapter
to the transmitter before you connect
it to AC power. When you finish,
disconnect the adapter from AC
power before you disconnect it from
the transmitter.
power the transmitter
Installing the batteries
The headphones requires three AAA alkaline
batteries or Ni-Ca/NiMH rechargeable batteries
(neither supplied) for power.
1. Remove the battery compartment cover on
the left earpiece.
2. If you are using alkaline batteries, set ALK/
RCH inside the compartment to ALK. If you
are using rechargeable batteries, set ALK/
RCH to RCH.
3. Place the batteries in the compartment
according to the polarity symbols (+ and –)
marked in the compartment.
4. Replace the battery compartment cover.
charging rechargeable batteries
The transmitter has a built-in charger. You can
use the transmitter to charge rechargeable
batteries(700mAh,not supplied) in your
headphones.
1. Place the
headphones on
the transmitter
and power the
transmitter
to charge the
rechargeable
batteries, the
transmitter’s
CHARGE indicator
lights up green.
• Rechargeable batteries can be
continuously charged over several
days.
• The batteries can be charged with the
transmitter set to on or off.
• When the batteries have been
completely discharged, it takes about
10 hours to completely recharge the
batteries.
2. The CHARGE indicator turns off when
charging is completed, remove the
headphones from the transmitter.
power the headphones
Note
Note
1. Connect one end of the supplied audio
patch cord to the transmitter’s AUDIO IN
jacks (white plug to L AUDIO IN and red
plug to R AUDIO IN).
2. Follow one of the steps below to connect
the transmitter to your audio source.
• If your audio source’s has output jacks,
connect the white and red plugs at the
other end of the RCA cable directly to
the audio source’s corresponding left
(white) and right (red) audio jacks.
• If your audio source has a 1/8-inch
headphones jack, connect the white
and red plugs of the RCA cable to the
white and red phono jacks of the 1/8-
inch stereo plug adapter. Then insert
the adapter into the audio source’s
headphones jack.
• If your audio source has a 1/4 -inch
headphones jack, insert the 1/8-inch
stereo plug adapter 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.
3. Power the transmitter.
installing your headphones
1/8-inch
stereo
plug
adapter
1/8-to-1/4-inch
stereo adapter
OR
OR
ALK/RCH
CHARGE
indicator
POWER
indicator
Power AUDIO
IN
jacks
RCA cable
12V, 250mA AC/DC adapter
transmitter
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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.
• 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.
Changes or modifications not expressly approved by RadioShack may cause interference and void the user’s
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
the FCC wants you to know
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 authorized RadioShack franchisees and dealers. For complete warranty details and
exclusions, check with your local RadioShack store.
RadioShack Customer Relations
300 RadioShack Circle, Fort Worth, TX 76102 04/04
limited 90-day warranty
Transmitter:
Carrier Frequency ................... ....................................................................... 911.4 and 915.6 MHz
Power Source .................. ........................................................................12V DC, 250 mA adapter
Modulation Method ............... ............................................................................ ....FM Modulation
Receiver:
Sensitivity ................... ............................................................................. ...<2µV (with 20 dB S/N)
S/N Ratio (@-50dBm) ........ ............................................................................ ....>60 dB (A weight)
Audio Distortion ................... ......................................................................................... ..........<2%
Max. Audio output ............. .................................................................................................>8 mW
Channel Separation……… ........................................................... …………………………….>50dB
Operation Distance……… ............................................................... …………………………150 feet
Power requirement…… ....................... …3 AAA alkaline or rechargeable batteries (not include)
Overall Frequency Response…… .........................................................................……50Hz-20KHz
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without
notice. Images contained in this document may vary from the final product.
specifications
©2005 RadioShack Corporation.
All rights reserved. RadioShack and
RadioShack.com are trademarks
used by RadioShack Corporation.
AO0255AAA1
33-1197
09A05
Printed in China
• Try several locations for the transmitter. Select the location that provides the best
performance.
• If you connect the transmitter to an audio source headphone jack, set the audio source’s
volume control to mid-position, then adjust VOLUME on the headphones to the desired level.
• 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.
• To preserve battery life, be sure to turn off the headphones when you are not using them.
• Turn off the headphones before turning off the transmitter.
• To protect your hearing, set the volume to the lowest setting before you begin listening. After
you begin listening, adjust the volume to a comfortable level.
helpful hints
1. Press POWER on the transmitter. The
transmitter’s POWER indicator lights up red.
2. Turn on your audio source.
3. Adjust VOLUME on the headphones to a
lower level.
4. Slide ON/OFF on the headphones to ON.
5. Put on the headphones and adjust VOLUME
to the desired listening level.
6. Slide ON/OFF on the headphones to OFF,
the Power LED turns off.
7. To turn off the transmitter, press POWER.
The POWER indicator turns off.
using your wireless headphones
• To protect your hearing, follow these guidelines when you use 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.
listening safely
POWER
ON/OFF
VOLUME
POWER/
BATT LOW
• Use only fresh batteries of the required size and recommended type.
• Do not mix old and new batteries, different types of batteries (standard, alkaline, or
rechargeable), or rechargeable batteries of different capacities.
• If you do not plan to use the headphones for a week or longer, remove the batteries. Batteries
can leak chemicals that can destroy electronic parts.
• You can only charge rechargeable batteries. Do not attempt to charge alkaline batteries.
• Do not connect the transmitter to your audio source’s speaker output. Doing so could damage
the transmitter and audio source.
battery notes
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