Listen Technologies LR-500, LR-400 user manual LR-300 Specifications

Page 47

LR-300 Specifications continued

 

Specification

LR-300-072

 

 

 

Red, illuminates when unit is on. Flashes when batteries are

 

Indicators

LED

low. Flashes when charging. Flashes when locked and user

 

 

 

attempts to seek to another channel.

 

 

 

 

 

 

Battery Type

Two AA batteries, alkaline or NiMH

 

 

Battery Life (Listen batteries)

30 hours alkaline (LA-361), 15 hours NiMH rechargeable (LA-362)

 

 

Battery Charging (NiMH only)

Fully automatic, 14 hours

 

Power

 

2.3mm OD by 0.7mm ID, barrel type connector.

 

 

Power Supply Connector

7.5VDC, center positive <250mA. Drop in contact points for use

 

 

 

with Listen charging cases.

 

 

 

 

 

 

Compliance

UL Listed

 

 

Dimensions

3.0 in x 1.0 in x 5 in WxDxH (7.6cm x 2.5cm x 13.cm)

 

Physical

Unit Weight

3.9oz (111g)

 

Unit Weight with batteries

5.8 oz (164.4g)

 

 

Shipping Weight

1.0 lbs (453.6kg)

 

 

Door

Manually lockable. SEEK behind the door.

 

Environmental

Temperature - Operation

-10° to 40°C (14° to 104° F)

 

Temperature - Storage

-20° to 50°C (-4° to 122° F)

 

 

Humidity

0 to 95% relative humitity, non-condensing

 

 

 

 

 

LR-300 Specifications

45

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Contents User’s Manual Welcome to Listen Receivers Table of Contents This page intentionally left blank LR-500 Programmable Display Receiver Optional Accessories LR-500 Package Contents Listen Part NumberLR-500 Table of Contents Architectural Specifications LR-500 SpecificationsLR-500 Specifications 5mm Input Jack Listen earpiece or headset connects here Quick Reference LR-500 FrontLR-500 Top of Unit Quick Reference LR-500 Inside Access DoorQuick Reference LR-500 Look & Listen Display LR-500 Battery IndicatorRemove the product LR-500 Setup InstructionsOpen the front access door Select Battery TypePlace Batteries in Unit Set SQ switchSet Squelch Connect an Earphone or HeadsetTurn the Unit On Select ChannelsLCD display willLR-500 Operation Instructions Is the Channel Locked on My Receiver? Find an audio transmission using SeekAdjust the volume control To Lock into Only One ChannelUse the UP and Down keys to select channels Enter the Program modeLR-500Programming Instructions Locking Out Unwanted ChannelsSquelch LR-500 SquelchSquelch Programming Squelch Programming InstructionsLR-500 Charging LR-500 Charging BatteriesLR-500 Charging Batteries LR-500 Wall Transformer Operation This page intentionally left blank User’s Manual LR-400 Package Contents Listen Part Number LR-400 Table of Contents Specification LR-400-072 LR-400-216 LR-400 SpecificationsLR-400 Specifications LR-400 Top of Unit Quick Reference LR-400 FrontBattery Select Switch Quick Reference LR-400 Inside Access DoorQuick Reference LR-400 Look & Listen Display LR-400 Battery IndicatorLR-400 Setup Instructions Set SQ switch See pages 36 and 37 for squelch and programming information Select ChannelsLR-400 Operation Instructions Find an audio transmission using Seek LR-400 Squelch Squelch Programming Instructions LR-400 LR-400 Charging BatteriesLR-400 Charging Batteries LR-400 Wall Transformer Operation User’s Manual LR-300 Package Contents Listen Part Number LR-300 Table of Contents Specifications LR-300 SpecificationsLR-300 Specifications Quick Reference LR-300 Front Quick Reference LR-300 Inside Access Door LR-300 Top of Unit LR-300 Setup Instructions Place Batteries in Unit LR-300 Operation Instructions LR-300 Operation & Squelch LR-300 LR-300 Charging BatteriesLR-300 Charging Batteries LR-300 Wall Transformer Operation Supplementary Information Channel Selection Channel Selection SQ Summary Listen SQRF Reception Maximization Strategies 72MHz Compatibility Chart Narrowband 216MHz Compatibility Chart Compatibility Chart Audio is distorted Receiver Troubleshooting LR-300, LR-400, LR-500Receiver has no power There is no audioUsers keep changing channels Receiver TroubleshootingCannot pick up the signal on the receiver There is not sufficient rangeWant to run the unit from a wall transformer My batteries are not chargingCompliance Notice FCC Statement Warranty Optional Accessories Earphone Options Professional Camcorder Cable Optional Accessories Connector OptionsPage
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LR-500, LR-300, LR-400 specifications

Listen Technologies has established itself as a leader in providing innovative audio solutions that enhance communication in various environments. Among their standout products are the LR-400, LR-300, and LR-500, which are designed for assistive listening, language interpretation, and audio distribution. Each of these portable receivers offers unique features, ensuring that users have a seamless experience during presentations, events, and meetings.

The LR-400 is a versatile listening receiver that operates on a wide frequency range. It is specifically engineered for maximum clarity and disturbance-free reception. One of its primary features is the ability to connect directly to a variety of audio sources, making it compatible with numerous sound systems. This device boasts a prominent LCD display, which provides real-time information about channel selection and battery life, enhancing user accessibility. Additionally, the LR-400 supports both mono and stereo audio configurations, catering to different listening preferences and needs.

The LR-300, on the other hand, is specifically built for personal listening purposes, often utilized in classrooms, theaters, and guided tours. It is lightweight and compact, designed for ease of use and portability. One of the LR-300’s standout features is its long battery life, allowing for extended use without the need for frequent recharging. Users can easily adjust the volume for optimal sound levels, ensuring they can fully engage with the presented audio without compromising comfort. The LR-300 can also be equipped with various headphones and earphones, providing flexibility to suit individual preferences.

Finally, the LR-500 expands on the capabilities of its predecessors with advanced technology aimed at improving audiology experiences. It offers a digital communication protocol that significantly enhances audio quality while minimizing interference. The LR-500 is particularly suitable for professional settings, such as conferences and multinational events, where language interpretation is required. With multiple channel options, it allows participants to select their preferred language effortlessly. Its robust design ensures durability, making it suitable for frequent travel and usage in diverse environments.

In conclusion, the LR-400, LR-300, and LR-500 receivers from Listen Technologies exemplify the company's commitment to delivering high-quality audio solutions. Each device is equipped with advanced features and technologies that address specific user needs, whether for personal listening, language interpretation, or professional audio distribution. With their reliability and performance, these receivers enhance communication and accessibility in various settings, ensuring that every voice is heard loud and clear.