2.4GHz Stereo
wireless
HEADPHONES
DIGI
T
A
L
2.4GHz Digital Stereo
Wireless Headphone System
With 16 Band FSK Transmission
LTB wants to thank you for choosing the Concert
Series Wireless Headphones.
Before attempting to use your Wireless
Headphones, please remove all parts from the box and
read the installation and use instructions carefully
Limited 1 Year Warranty LTB-WR-ST
INTR
ODUCT
This 2.4 GHz stereo wireless headphone system features a compact
design that uses the latest wireless technology that enables you to
enjoy music and TV sound anywhere inside or outside your home.
You can simply connect the system to any sound source, such as a
DVD, DBS, CD, TV, VCR, stereo receiver and radio.
ION
FEATURE
One touch Channel Selection
2.4 GHz RF technology lets you roam freely throughout your house
Operating distance up to 100 Meters
No line-of-sight limitation
Rechargeable headphone receiver
Built-in charger in the transmitter
Automatic level control (ALC) and Auto ON/OFF design
S
HEADSET SAFETY
■ Do not play your headset at a high volume.
Hearing experts advise against continuous extended play.
■ If you experience a ringing in your ears, reduce the volume or
discontinue use.
■ Make sure the volume level of the headphone is set at a comfortable
listening level before placing it in position over your ears.
1
WR-ST SPECIFICATION
S
Transmission Mode : Operating at 2.4GHz ISM band
Carrier Frequency
Operation Voltage : Transmitter, 3.6 ~ 5VDC
Frequency Response : 20 ~ 20 KHz, -1dB
Frequency stability : ±100 KHz
S/N ratio : 87dB (Typical)
Separation : 80dB (Typical)
Operation distance : 30 Meters
FCC operation is subject to the following two conditions: (1) this device
may not cause interference; and (2) this device must accept any
interference, including interference that may cause undesirable operation of the device.
Changes or modifications not expressly approved by the party
responsible for compliance to the FCC rules could void the user/s
authority to operate this equipment.
Warning: Changes or modifications to this unit not expressly
approved by the party responsible for compliance could void the
user/s authority to operate the equipment.
with 8 selectable channels
2410, 2419 ~ 2473 MHz
:
Receiver, 3.9 ~ 5VDC
(2 x AAA rechargeable batteries)
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TROUBLES
HOOTING YOUR SYSTEM
NO SOUND - Make sure the AC adapter is fully inserted into the AC
NO SIGNAL - Make sure the power indicator on the base unit is on.
outlet and into the DC Power Jack input on the
transmitter.
- Make sure the headphone ON/OFF switch is in the
ON position Indicated by a red LED light.
- Headphone battery may be too weak. Charge battery.
Charge the new batteries for 8 hours prior to the first
use.
- Make sure the TV, stereo receiver or audio component
is ON and tuned to a channel with audio.
- Adjust the volume control on the headphone to
increase the volume.
- The connected audio/video equipment is not playing.
Turn on the equipment.
- The volume of the headphones is turned down.
Adjust the volume to an appropriate level.
Make sure the power indicator on the headset is on.
-
Change the CH-SEL button on the base and the CH-SEL
on the headset to a matching frequency band (when you
can hear audio)
- Headphone batteries may be too weak. Charge the
included NiMh rechargable AAA batteries or replace
them with new ones.
- The headphone is too far from transmitter (over 30
Meters). Move closer.
- The input level of the audio signal is too low. Turn up
the volume of the audio source equipment.
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CHAR
GING THE BATTERIES
1. Switch the ON/OFF button on the headphone receiver OFF .
2. Plug the charge cord into the charge input jack of the headphone
receiver to charge the batteries.
3. The charging process starts automatically when the batteries are
charged and the charging RED LED lights up. Charge the new
batteries for 24 hours prior to the first use of the headphone system.
Caution : Do not use other types of batteries to replace the rechargeable
(AAA) battery. When you are not using the headphone
receiver, please switch it to OFF to avoid damage to the
batteries.
CHARGE
CORD
The battery pack must be fully charged prior to operation. An initial
charge of 24 hours is required to ensure the extended life of the
rechargeable batteries. Be sure the headphone receiver is in the
OFF position during charge status.
6
NOTE
You should now be able to walk freely from room to room enjoying full
stereo sound. If you notice interference (noisy signal or if the sound is
distorted or breaks up), adjust the frequency by pressing CH-SEL on the
top of the transmitter base and then select CH-SEL on the headset.
This should help you to obtain better reception with
You may have to try this adjustment several times to
obtain optimum performance, depending on the conditions. Please refer
to the following drawings A and B for best tuning:
the headphones.
A
Keep a distance of about 60 feet between the headphone and the
transmitter when adjusting the tuning knob for best stereo reception.
60 FEET
B
Whenever you find interference, readjust the frequency of the
transmitter by pressing CH-SEL on the transmitter and the CH-SEL
on the headphone to lock in a new frequency .
60 FEET
For protection of the transmitter and to save power, the transmitter
will cut off automatically after about one minute when the input
signal from an audio source is too weak for operation. If the signal
from the audio source returns at a sufficient level, the transmitter will
turn on again automatically.
5
EADP
H
HONE RECEIVE
R
1. Open the battery compartment cover on the right side of the
headphone receiver.
2. Insert two AAA size rechargeable batteries, noting the correct polarity
as indicated in the battery compartment.
3. Replace the cover by sliding it in place until it snaps into position.
4. The batteries must now be charged before you use the headphones.
Refer to the instructions on page 6 Charging the Batteries for
details.
The headphone may be operated by
using standard or alkaline batteries.
However, these may not be recharged in
the headphone. Standard zinc carbon,
manganese or alkaline batteries
may leak or explode if recharged in
the headphone, thereby voiding
the warranty. Do not attempt to
recharge any batteries in the head-
AAA
RECHARGEABLE
BATTERIES
BATTERY
DOOR
phone other than nickel cadmium
type cells that were included with
your unit.
RIGHT ARPHONE
OPERATION
1. Turn on the audio source (TV or audio component) to which the
transmitter is connected.
2. Slide the ON/OFF switch on the headphone to ÒON.Ó
3. Listen to the volume coming from the ear cups on the headphone to
make certain that the volume is not too loud before placing the unit
on your head. (See the section titled ÒHeadset SafetyÓ on page 1.)
Adjust the volume as needed using the VOLUME CONTROL wheel
located on the left ear cup. Once the volume level is at a comfortable
setting, place the headphones over your ears and adjust the volume
as desired.
4. If the best frequency reception is not found, press the ÒAuto ScanÓ
button on the headphone to locate the frequency of the transmitter
for the best reception. The stereo LED indicator will light up.
4
INSTALLAT
ION
TRANSMITTER
1. Remove the Transmitter from the packaging.
2. Plug the AC power adapter into the DC jack located on the rear of
the transmitter.
3. Connect the AC power adapter to an electrical wall outlet.
4. The audio cord on the rear of the transmitter can be connected to
the audio output jack (R & L) of the TV, stereo receiver, VCR, DVD
or radio.
Use a Y Splitter for R & L type RCA connections.
5. Turn on the component device.
Note that when the audio device is on, the green SIGNAL
INDICATOR LED light will glow (green ). This indicates that the
transmitter is receiving an adequate audio signal. If the LED is not on,
you must increase the volume until the green LED is lit. If you
increase the volume and the LED still does not illuminate, then check
all your connections and make sure that the power is on for both the
device and the transmitter. Refer to the section titled
roubleshooting located on page 8 of this instruction book for
T
assistance.
AC/DC
ADAPTER
AUDIO
CORD
CHARGE
CORD
3
2,4GHZ TRANSMITTER
FRON
T
FREQUENCY ADJUST
POWER ON/SIGNAL INDICATOR (RED)
BAC
K
CHARGE CORD
CHARGE INDICATOR (GREEN)
AUDIO CORD
2.4GHZ HEADPHONE RECEIVE
TUNING
CONTROL
R
ON/OFF
SWITCH
DC POWER JACK
INDICATOR
POWER
LED
VOLUME
CONTROL
LEFT EARPHONE
CHARGE
INPUT
2
RIGHT EARPHONE
TTER
DOOR
LTB L
IMITE
D 1 YEAR WARRANTY
LTB Audio Systems, Inc. warrants that for 1 year from the date
of original purchase, it will replace this product if found to be
defective in materials or workmanship. Return it postage prepaid
to the Product Exchange Center address for prompt, no charge
replacement with a current equivalent. This replacement is
LTB Audio Systems, Inc. sole obligation under this
warranty
LTB Audio Systems, Inc. will not be r esponsible for any incidental
or consequential damages, or for any loss arising in connection
with the use or inability to use this product.
Some states do not allow the exclusion or limitation of incidental
or consequential damages, so the above limitation or exclusion
may not apply to you. This warranty excludes defects or damage
due to misuse, abuse, or neglect. This warranty gives you specific
legal rights, and you may also have other rights, which vary from
state to state.
© 2005 LTB Audio Systems, Inc.
Product Service Center
375 North Street, Unit N
Teterboro, NJ 07608
LTB-WR-ST Rev0927
Trademark(s) ¨ Registered
Marca(s) Registrada(s)
www.ltbaudio.com
Manufactured In China
9
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