Listen Technologies LR-4200-072 Intelligent DSP RF Receiver, 72 MHz

SKU: LTLR4200072 MFR: LR-4200-072
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Key Features

  • Experience crystal-clear audio with this Listen Technologies RF receiver at 72 MHz.
  • Enjoy up to 8 hours of continuous use with the long-lasting lithium-ion battery.
  • Use for assistive listening: perfect for tours, theaters, & educational settings.
  • Compact & lightweight receiver ensures comfortable, all-day use with simple controls.
  • Customize your listening experience with 17 wide band & 40 narrow band channels.
  • Durable design & lifetime warranty offer peace of mind for reliable audio support.
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Listen Technologies LR-4200-072 Specifications

Audio
  • System Distortion

    < 2% total harmonic distortion (THD) at 80% deviation

  • Output/s

    Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm

  • System Frequency Response

    50 Hz - 15 kHz ( +/-3 dB)

  • System Signal to Noise Ratio

    SQ enabled 80 dB, SQ disabled 60 dB

Controls

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  • User Controls

    Power, up/down volume

  • Programming

    Via software and USB port

  • Set-up Controls

    Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel

Indicators

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  • LEDs

    Flashes when batteries are low or to indicate charging, solid when fully charged

  • Display

    Channel designation, battery level, unit number, charging status

  • Frequency Range

    72.0250 - 75.9500 MHz

  • Number of Channels

    17 wide band, 40 narrow band

  • Sensitivity

    .6uV typical, 1 uV maximum for 12 dB sinad

  • Frequency Accuracy

    +/- .005% stability 32 to 122 Degree F (0 to 50 Degree C)

  • Squelch

    Programmable in 20 steps, automatic on loss of RF signal

  • Antenna Type

    Uses ear phone/neck loop lanyard and short ear phone cable or standard earphone cable

  • Power Supply

    Micro USB connector, 5 V, 500 mA

  • Battery Type

    Lithium Ion 3.7 Vdc, 1200 mAh

  • Battery Life

    8 Hours of continuous use

  • Battery Charging Time

    Fully charged in 2.5 Hours

Environmental

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  • Temperature - Operation

    14 to 104 Degree F (-10 to 40 Degree C)

  • Temperature - Storage

    -4 to 122 Degree F (-20 to 50 Degree C)

  • Relative Humidity

    0 to 95% relative humidity, non-condensing

Compliance

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  • Standards

    FCC Part 15, Part 90, Industry Canada, RoHS

Physical

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  • Compatibility

    LT-800-072-01, LT-700-072

  • Color

    Black

  • Dimensions (H x W x D)

    Without Belt Clip: 3.75 x 2.00 x 0.64" (9.6 x 5 x 1.7cm)
    With Belt Clip: 3.75 x 2.00 x 0.80" (9.6 x 5.0 x 2.1cm)

  • Weight

    Without Batteries: 1.60 oz (45g)
    With Batteries: 2.40 oz (68g)

  • UPC Code

    819267022249

About Listen Technologies LR-4200-072

Explore the unparalleled audio clarity and quality of the LR-4200-072 Intelligent DSP RF Receiver, 72 MHz from Listen Technologies. This device is renowned for its superior range and reception, making it a standout in its class. As a key component of our Intelligent Digital Signal Processing (iDSP) line, the LR-4200-072 is the smallest device in its category, offering a compact, unobtrusive solution for the end user.

The receiver comes with an integrated neck loop/lanyard, ensuring easy wearability. Its DSP loop driver enhances the listening experience, especially for those using T-coil-equipped hearing aids. The dual 3.5mm output jacks further enhance its versatility, allowing multiple users to share the device.

Equipped with a micro USB connection, the LR-4200-072 receiver can be used with our complimentary iDSP software for charging, setup, programming, inventory management, and firmware updates. The device's advanced Lithium-ion rechargeable batteries ensure reliable power and longevity, making it ideal for extended speaking sessions, presentations, and more.

The integrated OLED display provides clear visibility of charge status, channel information, and volume level. Whether for classrooms, boardrooms, conferences, or any other venue requiring reliable assistive listening, the LR-4200-072 is an exceptional choice.

In terms of architectural specs, this RF receiver is capable of receiving on 57 wide and narrow band channels. It is designed to tune to a single channel, with the user unable to change the channel. The receiver boasts a signal-to-noise ratio of 80 dB or greater and an audio frequency response of 50 Hz - 15 kHz ( +/-3 dB).

The LR-4200-072 employs unique DSP SQ noise reduction technology and features a programmable squelch circuit. The multi-functional display indicates battery status, inventory number, and channel. The device can be worn on a lanyard or belt clip, with the lanyard offering an integrated neck loop option.

The USB connector serves multiple purposes, including inventory control, setup, charging, and firmware upgrades. The device features automatic battery charging circuitry and uses a non-proprietary lithium-ion battery. Additional charging contacts allow for multiple charging options. Experience the superior performance of the Listen LR-4200-072 today.

Listen Technologies LR-4200-072 Features

  • High-performance RF receiver offering best-in-class sensitivity and 20dB less noise than other devices
  • Integrated neck loop/lanyard with DSP loop driver for an enhanced T-coil listening experience
  • Smallest device of its kind makes it easier to wear and use and for venues to dispense, store and maintain
  • OLED display showing channels, battery status, channel status, volume level, and more
  • Lanyard and belt clip options offer convenient and discreet choices for the end user
  • Advanced rechargeable battery technology eliminates the costs and hassles associated with frequent battery replacement
  • Designed for single-channel applications

Product Documents

User Manual

Key Features

  • Experience crystal-clear audio with this Listen Technologies RF receiver at 72 MHz.
  • Enjoy up to 8 hours of continuous use with the long-lasting lithium-ion battery.
  • Use for assistive listening: perfect for tours, theaters, & educational settings.
  • Compact & lightweight receiver ensures comfortable, all-day use with simple controls.
  • Customize your listening experience with 17 wide band & 40 narrow band channels.
  • Durable design & lifetime warranty offer peace of mind for reliable audio support.

What's in the box:

  • LR-4200-072 Intelligent DSP RF Receiver (72 MHz)
  • Quick Start Guide
  • Lithium-Ion Battery
  • Listen Technologies Lifetime Limited Warranty