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INTRODUCTION

Your Optimus 900 MHz Rechargeable
Wireless Stereo Headphones bring you
the latest in wireless headphone tech-
nology. Using the 900 MHz band, they
can deliver high-quality stereo sound al-
most anywhere in or around your home.
The signals can easily travel through
most walls and floors, so you do not
need to be in the same room as your au-
dio source to hear your favorite pro-
grams.

Your stereo headphones also have the
following features.

Adjustable Headband — you can easi-
ly adjust the headband for the most
comfortable fit.

On/Off Switch — lets you turn off the
headphones when you are not using
them to save battery power.

Charging Jack — lets you power the
headphones for 7 hours or more on a
single charge. 

Volume Control — lets you easily ad-
just the volume to a comfortable listen-
ing level without adjusting the audio
source. 

Charging Light — automatically lights
green when the transmitter is on and re-
ceiving clear signals from the audio
source, or red when charging batteries.

 

This symbol is intended to alert you to
the presence of uninsulated dangerous
voltage within the product’s enclosure
that might be of sufficient magnitude to
constitute a risk of electric shock. Do
not open the product’s case.

This symbol is intended to inform you
that important operating and mainte-
nance instructions are included in the
literature accompanying this product.

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE-
ABLE PARTS INSIDE. REFER SERVIC-
ING TO QUALIFIED PERSONNEL.

Warning: To reduce the risk of fire or
shock hazard, do not expose this
product to rain or moisture.

CAUTION

!

!

© 1998 Tandy Corporation.

All Rights Reserved.

Optimus and RadioShack are registered trademarks used by Tandy Corporation.

33-1144.fm  Page 2  Tuesday, August 10, 1999  10:16 AM

Summary of Contents for 900MHz Rechargeable Wireless Stereo Headphones

Page 1: ...Cat No 33 1144 OWNER S MANUAL Please read before using this equipment 900MHz Rechargeable Wireless Stereo Headphones 33 1144 fm Page 1 Tuesday August 10 1999 10 16 AM ...

Page 2: ...adjusting the audio source Charging Light automatically lights green when the transmitter is on and re ceiving clear signals from the audio source or red when charging batteries This symbol is intended to alert you to the presence of uninsulated dangerous voltage within the product s enclosure that might be of sufficient magnitude to constitute a risk of electric shock Do not open the product s ca...

Page 3: ...If the in terference goes away your head phone system is causing the interference Try to eliminate the inter ference by moving your headphones away from the receiver connecting your headphones to an outlet that is on a different elec trical circuit from the receiver contacting your local RadioShack store for help If you cannot eliminate the interfer ence the FCC requires that you stop using your h...

Page 4: ...onnect the transmitter to a monaural audio source insert the transmitter s plug into a 1 8 inch 3 5 mm monaural plug such as Cat No 274 368 not sup plied Then insert the plug into the au dio source s headphone jack Cautions Do not connect the transmitter to the audio source s speaker out put Doing so could damage the transmitter Do not turn the audio source s volume beyond about 1 3 of the maximum...

Page 5: ...echargeable batter ies of different capacities Follow these steps to install the batter ies 1 Remove the battery compartment cover on the right earpiece by pushing up the tab and pulling up the cover in the direction of the arrow 2 Place the batteries over the ribbon in the compartment as indicated by the polarity symbols and marked inside 3 Replace the cover When the headphone system stops oper a...

Page 6: ...es at least 24 hours before you use the system the first time or when you replace the batteries Follow these steps to charge or re charge the batteries 1 Set the headset s ON OFF switch to OFF 2 Insert the plug on the transmitter s charging cord into the CHARGE jack on the left earpiece The charging indicator on the front of the transmit ter lights during fast charging about the first 5 hours The ...

Page 7: ...the transmit ter to a line out fixed level audio output jack the volume control on the audio source has no effect 3 Rotate on the headset upward until it stops to set it at its lowest level 4 Set the headphone receiver s ON OFF switch to ON The indicator lights red 5 Rotate TUNING on the left earpiece until the ST stereo indicator on the earpiece lights Notes The ST indicator lights red when the h...

Page 8: ...s Be sure to turn off the system when you are not using it to con serve battery power You can place the headphones on top of the transmitter when you are not using them ADJUSTING THE FREQUENCY If you receive interference from other de vices you might be able to reduce the interference by adjusting the stereo headphones operating frequency Simply rotate FREQ ADJUST on the transmitter then rotate TU...

Page 9: ...l until the indicator light on the head phone s transmitter lights green If the ST indicator on the left earpiece does not light steadily adjust TUNING on the left earpiece until it turns on Adjust the headphones volume control Change the position of the transmitter Charge the headphones batteries Distorted audio If the ST indicator on the left earpiece does not light steadily rotate the FREQ ADJU...

Page 10: ... which can cause prema ture wear of parts Handle the system gently and carefully Dropping it can damage cir cuit boards and cases and can cause the system to work improperly Use only fresh batteries of the required size and type Batteries can leak chemicals that damage your system s electronic parts Wipe the system with a damp cloth occasionally to keep them looking new Do not use harsh chemicals ...

Page 11: ...geable Batteries S N Ratio 60 dB Stereo Separation 30 dB Distortion 1 0 Operating Range 164 Feet Open Field Size WHD 17 9 16 7 1 16 3 3 16 Inches 192 180 81 mm Weight without batteries 8 oz 224 g Specifications are typical individual units might vary Specifications are subject to change and improvement without notice 33 1144 fm Page 11 Tuesday August 10 1999 10 16 AM ...

Page 12: ...the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option un less otherwise provided by law a correct the defect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replaced parts and products and products on wh...

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