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Dear Valued Customer,
Thank you for choosing Listen! All of us at Listen are dedicated to providing
you with the highest quality products available. We take great pride in their
outstanding performance because we care that you are completely
satisfied. That’s why we independently certify them to the highest quality
standards and back them with a limited lifetime guarantee. We stand ready
to answer any questions you might have during installation or in the operation
of our products. Should you experience any problems whatsoever with your
Listen products, we are ready to help you in any way we can with prompt,
efficient customer care. Because at Listen, it’s all about you! And should you
have any comments on how we might improve our products or our
service, we’re here to listen.
Here’s how to reach us:
+1.801.233.8992
+1.800.330.0891
+1.801.233.8995
North America
fax
Thank you and enjoy your listening experience!
Best regards,
Russell Gentner and the Listen Team
• In the few instances where repairs were needed, 99% of all clients indicated that they were happy with
repair turn-around-times and 85% of the time, clients were without their product for less than 10 days!
• Overall client satisfaction of working with Listen was rated 4.8 out of 5.
• “Please continue with your excellent attitude toward customer satisfaction. You guys are great!”
• “I’ve never had such good service from any company. Keep up the good work!”
• “You stand behind your product wonderfully.”
Assistive Listening • Language Interpretation • Soundfield • Tour Group • Conferencing
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Cases Table of Contents
4-Unit Cases
Package Contents
Specifications
3
4
5
6
Charging Instructions
8-Unit Cases
Package Contents
Specifications
9
10
11
12
Charging Instructions
16-Unit Cases
Package Contents
Specifications
15
16
17
18
Charging Instructions
25-Unit Case
Package Contents
Specifications
21
22
22
23
Configuration Instructions
Supplementary Information
Troubleshooting
Warranty
Contacting Listen
Optional Accessories
24
26
27
27
28
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4-Unit Case Package Contents
LA-317/323 Contents
LA-318 Contents
• LA-317 4-Unit Charging/Carrying
Case or LA-323 4-Unit Charging/
Carrying Case
• Power Supply
• Keys
• LA-318 4-Unit Storage/Carrying
Case
• Keys
• Shoulder Carrying Strap
•Shoulder Carrying Strap
LA-317/323 Highlights
•Sturdy case with hard foam interior and durable latches
•Charges up to 4 receivers or portable transmitters with NiMH batteries
•Pocket stores power supply, earphones and/or other accessories
•SmartCharge™ charging technology built into Listen products prevents overcharge
•Case comes with keys and can be locked for security
•Detachable nylon carrying strap
3
•Convenient removable lid (LA-323 model only)
LA-318 Highlights
•Sturdy case with hard foam interior and durable latches
•Individual storage pockets for a combination of 4 receivers and transmitters
•Large pocket for accessory storage
•Case comes with keys and can be locked for security
•Detachable nylon carrying strap
3
4
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4-Unit Case Specifications
Specification
LA-317/LA-323
Primary Power
Input 110-120 VAC, 60 Hz, 15 W
Power
Secondary Power
Output 7.5 VDC, 600 Ma
Description
Black, grey, and chrome lockable hard case. Interior foam.
2.6 lbs. (1.2 kg)
Weight
Shipping Weight
Shoulder Carrying Strap Length
Power Cord Length
Size W x H x D
5 lbs. (2.2 kg)
Physical
Adjustable 33.00 to 53.00 in. (83.0 to 135.0 cm)
6.0 ft. (1.8 m)
11.80 x 7.50 x 3.75 in. (30.0 x 7.5 x 9.5 cm)
Specification
LA-318
Power
None
Description
Black, grey, and chrome lockable hard case. Interior foam.
2.6 lbs. (1.2 kg)
Weight
Physical
Shipping Weight
Shoulder Carrying Strap Length
Size W x H x D
5 lbs. (2.2 kg)
Adjustable 33.00 to 53.00 in. (83.0 to 135.0 cm)
11.80 x 7.50 x 3.75 in. (30.0 x 7.5 x 9.5 cm)
5
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LA-317/323 Charging Instructions
Plug power supply into power source.
1
2
Any 110 to 120 VAC outlet can be used. The power must stay connected during
the full 13 hour charge cycle.
Plug power into case.
The green LED next to the power connector will illuminate
indicating the case is powered.
green LED lit when
power is connected
Check Battery Select Switch.
Make sure that you are using NiMH batteries and that the
3
battery select switch is in the correct position. Charging will only occur when the
Listen product’s battery selection switch is set to the “NiMH” position. This switch
is located inside the battery compartment of the product.
Enlarged area of interior of
LR-500
Warning: Do not attempt to charge alkaline batteries. This may damage the unit
and case, and will void the warranty!
Turn units to be charged OFF.
4
For optimal charging, receivers and transmitters should be turned OFF* during
the charge cycle. Portable transmitters manufactured prior to 2003 require that
the unit be turned ON to begin charging. Once charging begins, turn the
unit OFF.
Receiver power
switch - turn
clockwise until you
hear a ‘click’
LT-700 power switch
6
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LA-317/323 Charging Instructions (cont.)
Place units in case slots.
5
Connect units to power.
Plug power connectors into PWR/CHG jack on the side of the units.
Verify units are charging.
6
Watch units for 10 seconds before leaving them to charge. Once placed in the
charging slots, the red LED on top of Listen’s portable receivers and transmitters will
glow continuously for 1-2 seconds, then extinguish. The units will then evaluate
battery status for 5-7 seconds. If the battery select switch is positioned in the NiMH
setting, the red LED will begin to flash indicating that the units are charging.
NOTE: If batteries are completely discharged, the red LED will remain solid while the
batteries are reconditioned. Unit should begin flashing after 5-10 minutes. The
LED may flicker during the reconditioning process.
Verify Full Charge.
7
Each unit’s red LED will stop flashing once charging is complete. Charging time for
full recharge on completely discharged batteries is 13 hours.
NOTE: If a unit is removed from the case during the charge cycle, and then
reinserted, it will begin a new charge cycle.
WARNING: The case lid MUST be open or removed while the units are charging. The
charging process generates heat and ventilation is required. It is best to
store your charging case at room temperature away from heat sources
and direct sunlight.
7
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8-Unit Case Package Contents
LA-321/324 Contents
LA-322 Contents
• LA-321 8-Unit Charging/Carrying
Case or LA-324 8-Unit Charging/
Carrying Case
• LA-322 8-Unit Storage/Carrying Case
• Keys
• Shoulder Carrying Strap
• Power Supply
• Keys
•Shoulder Carrying Strap
LA-321/324 Highlights
•Sturdy case with hard foam interior and durable latches
•Charges up to 8 receivers or portable transmitters with NiMH batteries
•Removable charging platform
•Large pocket stores power supply, earphones and/or other accessories
•Center pocket stores earphones or other accessories
•Earphones can remain attached to receivers during storage and charging
•SmartCharge™ charging technology built into Listen products prevents overcharge
3
•Case comes with keys and can be locked for security
•Detachable nylon carrying strap
•Convenient removable lid (LA-324 model only)
LA-322 Highlights
•Sturdy case with hard foam interior and durable latches
•Stores up to 8 receivers or portable transmitters
•Pocket stores earphones and/or other accessories
•Earphones can remain attached to receivers during storage
•Case comes with keys and can be locked for security
•Detachable nylon carrying strap
3
10
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8-Unit Case Specifications
Specification
LA-321/324
Primary Power
Input 100-240 VAC, 50-60 Hz, 1200 mA
Power
Secondary Power
Output 7.5 VDC, 4A, 30W
Description
Black, grey, and chrome lockable hard case. Interior foam.
6.2 lbs. (2.80 kg)
Weight
Shipping Weight
Shoulder Carrying Strap Length
Power Cord Length
Size W x H x D
9.0 lbs. (4.00 kg)
Physical
Adjustable 33.00 to 53.00 in. (83.0 to 135.0 cm)
12.0 ft. (3.7 m)
15.75 x 9.80 x 7.00 in. (40.0 x 25.0 x 18.0 cm)
Specification
LA-322
Power
None
Description
Black, grey, and chrome lockable hard case. Interior foam.
6.2 lbs. (2.80 kg)
Weight
Physical
Shipping Weight
Shoulder Carrying Strap Length
Size W x H x D
8.0 lbs. (3.60 kg)
Adjustable 33.00 to 53.00 in. (83.0 to 135.0 cm)
15.75 x 9.80 x 7.00 in. (40.0 x 25.0 x 18.0 cm)
11
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LA-321/324 Charging Instructions
Plug power supply into power source.
1
2
Any 110 to 120 VAC outlet can be used. The power must stay connected during
the full 13 hour charge cycle.
Plug power into case.
The green LED next to the power connector will illuminate
indicating the case is powered.
green LED lit when
power is connected
Check Battery Select Switch.
Make sure that you are using NiMH batteries and that the
3
battery select switch is in the correct position. Charging will only occur when the
Listen product’s battery selection switch is set to the “NiMH” position. This switch
is located inside the battery compartment of the product.
Enlarged area of interior of
LR-500
Warning: Do not attempt to charge alkaline batteries. This may damage the unit
and case, and will void the warranty!
Turn units to be charged OFF.
4
For optimal charging, receivers and transmitters should be turned OFF* during
the charge cycle. Portable transmitters manufactured prior to 2003 require that
the unit be turned ON to begin charging. Once charging begins, turn the
unit OFF.
Receiver power
switch - turn
clockwise until you
hear a ‘click’
LT-700 power switch
12
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LA-321/324 Charging Instructions (cont.)
Place units in charging slots.
5
It may be necessary to press the units down
into the pocket to ensure that it is touching
the charging contacts.
Verify units are charging.
6
Watch units for 10 seconds before leaving them to charge. Once placed in the
charging slots, the red LED on top of Listen’s portable receivers and transmitters will
glow continuously for 1-2 seconds, then extinguish. The units will then evaluate
battery status for 5-7 seconds. If the battery select switch is positioned in the NiMH
setting, the red LED will begin to flash indicating that the units are charging.
NOTE: If batteries are completely discharged, the red LED will remain solid while the
batteries are reconditioned. Unit should begin flashing after 5-10 minutes. The
LED may flicker during the reconditioning process.
Verify Full Charge.
7
Each unit’s red LED will stop flashing once charging is complete. Charging time for
full recharge on completely discharged batteries is 13 hours.
NOTE: If a unit is removed from the case during the charge cycle, and then
reinserted, it will begin a new charge cycle.
WARNING: The case lid MUST be open or removed while the units are charging. The
charging process generates heat and ventilation is required. It is best to
store your charging case at room temperature away from heat sources
and direct sunlight.
13
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16-Unit Case Package Contents
LA-311/325 Contents
LA-313 Contents
• LA-311 16-Unit Charging/Carrying
Case or LA-325 16-Unit Charging/
Carrying Case
• LA-313 16-Unit Storage/Carrying Case
• Keys
• Shoulder Carrying Strap
• Power Supply
• Keys
•Shoulder Carrying Strap
LA-311/325 Highlights
•Sturdy case with hard foam interior and durable latches
•Removable charging platform
•Charges up to 16 receivers or portable transmitters with NiMH batteries
•Large pocket stores power supply, earphones and/or other accessories
•Small pockets store earphones or other accessories
•Earphones can remain attached to receivers during storage and charging
•SmartCharge™ charging technology built into Listen products prevents overcharge
3
•Case comes with keys and can be locked for security
•Detachable nylon carrying strap
•Convenient removable lid (LA-325 model only)
LA-313 Highlights
•Sturdy case with hard foam interior and durable latches
•Stores up to 16 receivers or portable transmitters
•Large pocket stores earphones and/or other accessories
•Small pocket stores earphones and/or other accessories
•Earphones can remain attached to receivers during storage
•Case comes with keys and can be locked for security
3
•Detachable nylon carrying strap
16
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16-Unit Case Specifications
Specification
LA-311/325
Primary Power
Input 100-240 VAC, 50-60 Hz, 1200 mA
Power
Secondary Power
Output 7.5 VDC, 4A, 30W
Description
Black, grey, and chrome lockable hard case. Interior foam.
7.6 lbs. (3.50 kg)
Weight
Shipping Weight
Shoulder Carrying Strap Length
Power Cord Length
Size W x H x D
11.0 lbs. (5.00 kg)
Physical
Adjustable 33.00 to 53.00 in. (83.0 to 135.0 cm)
12.0 ft. (3.7 m)
18.25 x 13.00 x 6.75 in. (46.0 x 33.0 x 17.0 cm)
Specification
LA-313
Power
None
Description
Black, grey, and chrome lockable hard case. Interior foam.
7.0 lbs. (3.50 kg)
Weight
Physical
Shipping Weight
Shoulder Carrying Strap Length
Size W x H x D
10.0 lbs. (4.50 kg)
Adjustable 33.00 to 53.00 in. (83.0 to 135.0 cm)
18.25 x 13.00 x 6.75 in. (46.0 x 33.0 x 17.0 cm)
17
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LA-311/325 Charging Instructions
Plug power supply into power source.
1
2
Any 110 to 120 VAC outlet can be used. The power must stay connected during
the full 13 hour charge cycle.
Plug power into case.
The green LED next to the power connector will illuminate
indicating the case is powered.
green LED lit when
power is connected
Check Battery Select Switch.
Make sure that you are using NiMH batteries and that the
3
battery select switch is in the correct position. Charging will only occur when the
Listen product’s battery selection switch is set to the “NiMH” position. This switch
is located inside the battery compartment of the product.
Enlarged area of interior of
LR-500
Warning: Do not attempt to charge alkaline batteries. This may damage the unit
and case, and will void the warranty!
Turn units to be charged OFF.
4
For optimal charging, receivers and transmitters should be turned OFF* during
the charge cycle. Portable transmitters manufactured prior to 2003 require that
the unit be turned ON to begin charging. Once charging begins, turn the unit
OFF.
Receiver power
switch - turn
clockwise until you
hear a ‘click’
LT-700 power switch
18
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LA-311/325 Charging Instructions (cont.)
Place units in charging slots.
5
It may be necessary to press the units down
into the pocket to ensure that it is touching the
charging contacts.
Verify units are charging.
6
Watch units for 10 seconds before leaving them to charge. Once placed in the
charging slots, the red LED on top of Listen’s portable receivers and transmitters will
glow continuously for 1-2 seconds, then extinguish. The units will then evaluate
battery status for 5-7 seconds. If the battery select switch is positioned in the NiMH
setting, the red LED will begin to flash indicating that the units are charging.
NOTE: If batteries are completely discharged, the red LED will remain solid while the
batteries are reconditioned. Unit should begin flashing after 5-10 minutes. The
LED may flicker during the reconditioning process.
Verify Full Charge.
7
Each unit’s red LED will stop flashing once charging is complete. Charging time for
full recharge on completely discharged batteries is 13 hours.
NOTE: If a unit is removed from the case during the charge cycle, and then
reinserted, it will begin a new charge cycle.
WARNING: The case lid MUST be open or removed while the units are charging. The
charging process generates heat and ventilation is required. It is best to
store your charging case at room temperature away from heat sources
and direct sunlight.
19
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25-Unit Case Package Contents & Specifications
LA-320 Contents
• LA-320 25-Unit Configurable
Carrying Case
• Keys
•Shoulder Carrying Strap
LA-320 Highlights
•Sturdy case with hard foam interior and durable latches
•Stores up to 25 portable receivers or portable transmitters
•Can be configured to store stationary transmitters and stationary receivers.
•Can be used to store any accessory items (headphones, earphones, power supplies, etc.)
•Earphones can remain attached to receivers during storage
•Case comes with keys and can be locked for security.
25-Unit Case Specifications
3
Specification
LA-320
Power
None
Description
Weight
Black, grey, and chrome lockable hard case. Interior foam covered wood dividers.
8.0 lbs. (3.70 kg)
Physical
Shipping Weight
10.2 lbs. (4.60 kg)
Shoulder Carrying Strap Length
Size W x H x D
Adjustable 33.00 to 53.00 in. (83.0 to 135.0 cm)
18.25 x 13.00 x 6.75 in. (46.0 x 33.0 x 17.0 cm)
22
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LA-320 Configuration Instructions
The LA-320 Configurable Carrying Case can accommodate a combination of
different Listen products. This product is designed to adapt to the specific needs
of each customer.
To Configure:
•Remove any of the small section dividers; or move small section
dividers up or down as needed.
•Remove any of the large section dividers; or move large
section dividers left or right as needed.
•Replace small and large section dividers as needed to fit your application.
•Store any unused section dividers for future use.
•Close lid to ensure a secure fit for all equipment.
NOTE: When removing section dividers for customization of your case, it may be
necessary to use extra section dividers for added support and strength. This
can be accomplished by doubling up end dividers as shown in the
illustration.
23
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Removable Charging Platform
Listen 8 and 16 slot charging platforms can be used without the carrying case.
If you desire to place the platform on a table, shelf or in a drawer to minimize
the space required for charging, the foam platform can be used separately.
The removable charging platform is available on the 8 and 16 unit charging
cases only (LA-321, LA-324, LA-311 and LA-325).
To Remove Platform:
•Open case.
•Hold case, while gently pulling the right side of the foam charging platform
upward.
•Unplug charging wire at the 2 pin connection located
under the foam platform.
•Attach external charging adapter cable (included)
to the foam charging platform connector.
•Plug in power supply to adapter cable.
•Charge units. (see charging instructions for your case)
Removable foam charging platform
External charging adapter cable
24
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NiMH Battery Technology
Listen LA-362 NiMH batteries are industrial grade and provide constant current
to Listen products. These batteries provide 2000 milliamp hours (mAh) of storage
capacity. When used with Listen supplied batteries, Listen products should provide
the following operational time after batteries are fully charged:
Receivers:
15 hours
Transmitters: 8 hours
Listen recommends that new batteries be put through two-charge cycles prior
to use.
Nickel Metal Hydride (NiMH) batteries have no memory effect, so each charge
offers full recharge capacity.
NiMH batteries can be repeatedly charged to full capacity from any level of
capacity. NiMH batteries typically maintain optimal performance for 500 to 700
charge cycles. Listen recommends that batteries be replaced after 2 years of
service or whenever the batteries no longer hold a charge.
Please note that NiMH batteries should be recharged if they have been sitting idle
for more than two months, as they lose around 20-30% of their charge each month.
To avoid battery discharge while not using Listen products, it is recommended to
leave units in a powered case, as the maintenance charge will ensure the batteries
remain at full charge. Make sure the case lid remains open or removed. The
charging process generates heat and ventilation is required.
LED Indicators
Portable Receivers (LR-300, LR-400, LR-500)
Continuous ON
Slow flash
Unit is operating
Red LED
Batteries are low
Charging in progress
Slow flash while charging
Portable Transmitters (LT-700)
Unit is operating
Continuous ON
Slow flash
Batteries are low
Red LED
Slow flash while charging
Fast flash
Charging in progress
Audio mute is active
Charging/Carrying Cases (LA-311, LA-317, LA-321, LA-323, LA-324, LA-325)
Continuous ON
Power to case
Green LED
Continuous OFF
No power to case
25
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Troubleshooting
Troubleshooting
4-Unit Case Troubleshooting:
The batteries seem to drain when left in the case.
Make sure unit’s volume wheel remains in the “off” position when stored in the case. It is
possible to turn units on when placing them in carrying pockets.
The red LED on my portable product does not flash when connected in charging case (which
indicates charging is not occurring.)
Make sure unit’s volume wheel remains in the “off” position when stored in the case. It is
possible to turn units on when placing them in carrying pockets. Check that there is power to
the case, this is verified by the green LED next to the power connection being lit. The
batteries may be completely discharged. In this situation, leave the unit in the charging case
for 5-10 minutes, while the batteries are reconditioned. Verify tight connection between
charging wire and unit. Verify unit battery switch is in NiMH position.
8-Unit &16-Unit Case Troubleshooting:
The red LED on my portable receiver does not flash when product is placed in the charging
case (which indicates charging is not occurring.)
Check that there is power to the case, this is verified by the green LED next to the power
connection being lit. Make sure that the plug underneath the removal charging platform is
connected. Verify unit is seated correctly and is making contact with the charging pins. Some
minor adjustments of the unit’s position in the charging pocket may be required. The batteries
may be completely discharged. In this situation, leave the unit in the charging case for
5-10 minutes, while the batteries are reconditioned. Verify unit battery switch is in NiMH position.
The red LED on the LT-700 does not flash when product is placed in the charging case
(which indicates charging is not occurring.)
Verify issues related to portable receivers are not present. If unit was manufactured prior to
2003, unit will need to be turned “on” for charging to begin. Once these units begin charging,
they may be turned “off”. Verify unit battery switch is in NiMH position.
The LCD on the product goes dark during charging.
This is normal, discoloration of the LCD may occur during charging. This does not affect the
performance of the product, and the LCD will return to normal after charging is complete.
The product operates for a short amount of time after charging before it needs to be charged
again (less than 5 hours).
Verify the batteries are less than 2 years old and have not exceeded 500 charge cycles.
Replace the batteries if necessary. Verify the units receive proper amount of charging time
between each use. A complete charge takes 14 hours. Listen recommends charging products
overnight for best performance.
26
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Warranty & Contacting Listen
Warranty
Listen Technologies Corporation (Listen) warrants its transmitters and receivers (LT-82, LT-700, LT-800, LR-100, LR-42,
LR-44, LR-300, LR-400, LR-500, LR-600) to be free from defects in workmanship and material under normal use and
conditions for the useful lifetime of the product from date of purchase.
Listen warrants its Stationary IR Radiators (LA-140) to be free from defects in workmanship and material under normal
use and conditions for three years from the date of purchase.
Listen warrants its Noise Canceling Microphone (LA-270) to be free from defects in workmanship and material under
normal use and conditions for one year from date of purchase.
Listen warrants its Charging/Carrying Cases (LA-306, LA-311, LA-313, LA-317, LA-318, LA-319, LA-320, LA-321, LA-322,
LA-323, LA-324, LA-325) to be free from defects in workmanship and material under normal use and conditions for
one year from date of purchase.
All other products and accessories are warranted for 90 days from date of purchase.
This warranty is only available to the original end purchaser of the product and cannot be transferred. Warranty is
only valid if warranty card has been returned within 90 days of purchase. This warranty is void if damage occurred
because of misuse or if the product has been repaired or modified by anyone other than a factory authorized
service technician. Warranty does not cover normal wear and tear on the product or any other physical damage
unless the damage was the result of a manufacturing defect. Listen is not liable for consequential damages due to
any failure of equipment to perform as intended. Listen shall bear no responsibility or obligation with respect to the
manner of use of any equipment sold by it. Listen specifically disclaims and negates any warranty of merchantability
or fitness of use of such equipment including, without limitation, any warranty that the use of such equipment for any
purpose will comply with applicable laws and regulations. The terms of the warranty are governed by the laws of the
state of Utah.
In the first ninety days after purchase, any defective product will be replaced with a new unit. After 90 days, Listen
will, at its own discretion either repair or replace transmitters and receivers with a new unit or a unit of similar type
and condition. Product that is not covered under warranty shall be repaired or replaced with a unit of similar type
and condition based on a flat fee. Contact Listen for details.
This limited warranty, prices and the specifications of products are subject to change without notice.
Contacting Listen
If technical service is needed, please contact Listen. Pre-authorization is required before returning Listen products.
If products were damaged in shipment, please contact the carrier, then contact Listen for replacement or repair
requirements payable by the carrier.
Listen’s corporate headquarters are located in Bluffdale, Utah U.S.A. and are open Monday through Friday, 8am to
5pm Mountain Time.
Listen Technologies GmbH
Jasminstr.16, 90522 Oberasbach, Germany
14912 Heritagecrest Way
Bluffdale, Utah 84065-4818
+1.801.233.8992
Europe
+49 911 955 159 0
Fax
+49 911 955 159 40
North America
+1.800.330.0891
+1.801.233.8995
fax
27
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Optional Accessories
Case Accessories
This sturdy nylon case can be used to store and
transport 1 to 3 portable products and accessories.
Dimensions: 8.00 x 3.00 x 7.00 in. (7.6 x 17.7 x 20.2 cm)
H x W x D.
LA-306
Listen Soft Case
The protective pouch is great for outside or dusty
environments. Belt clip and connectors accessible
through windows and openings.
LA-319
Protective Pouch
Power/Charging Options
Longer life than NiCAD without the “memory effect.”
Required for use in charging cases. Package of two AA
batteries
LA-362
Listen NiMH
Rechargeable AA
Batteries
Use to power individual portable units without
batteries, or to charge units with NiMH batteries.
115VAC/7.5VDC
LA-202
Power/Charging
Supply
28
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Notes
29
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Notes
30
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Notes
31
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Listen Technologies Corporation
14912 Heritagecrest Way
Bluffdale, Utah 84065-4818, U.S.A.
+1.801.233.8992
North America
+1.800.330.0891
+1.801.233.8995
fax
© 2008 Listen Technologies Corporation® All Rights Reserved 081308
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