Listen Technologies LP-51-IR Advanced Intelligent DSP IR Receiver, 12x LR-5200-IR Receiver (72 MHz), LA-381 Charging Tray

SKU: LTLP51IR01 MFR: LP-51-IR-01
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Key Features

  • Experience superior audio clarity with the Advanced Intelligent DSP IR Receiver.
  • Enjoy up to 8 hours of battery life for extended use in meetings or presentations.
  • Easily manage multiple channels with the intuitive user controls for seamless navigation.
  • Ensure clear communication with a wide frequency response of 63 Hz - 15 kHz.
  • Ideal for assistive listening, this system meets ADA 706 and CBC 11B-706 standards.
  • Charge up to 12 devices simultaneously with the included intelligent charging tray.
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Special Order?Estimated to Ship: 08/19/2025
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Listen Technologies LP-51-IR Specifications

Audio
  • System Distortion

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

  • Audio Output Jacks

    Two (2) 0.14" (3.5mm) connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm, accepts mono or stereo phone plug or LA-430 Intelligent Ear Phone/Neck Loop Lanyard

  • System Frequency Response

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

  • System Signal to Noise Ratio

    > 60 dB

Controls

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  • User Controls

    Power on/off, volume up/down, Listen button for end user channel selection

  • Programming

    Via software and USB port, Auto Seek, Jack Sense, Squelch, Auto Power, Auto Off, Stereo, Brightness, Channel Name, Channel button, Channel Lock

  • 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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  • Display

    OLED - Channel designation, battery level, unit number, charging status, volume status

  • LED

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

  • Carrier Frequencies

    2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz

  • Number of Channels

    Four (4) selectable channels

  • Frequency Accuracy

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

  • Modulation

    FM Wideband, +/-50 kHz deviation max, 50 uS de-emphasis

  • Coverage Area

    30,000 sq ft (2787 sq m) single channel with LT-84/LA-141 or 40,000 sq ft (3716 sq m) single channel with LT-82/LA-140

  • Squelch

    Programmable in 20 steps, automatic on loss of IR signal

  • Power Save Mode

    Turns unit off after a specified time of no IR signal, default is 30 minutes

  • Sensitivity

    Better than one (1) nW/sq cm @40 dB SNR

  • Power Supply

    Micro USB connector, 5 V, 500 mA

  • Battery Type

    Lithium Ion

  • Battery Life

    8 Hours of typical 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, ICS-03, CE, RoHS, WEEE, ADA 706, CBC 11B-706

Physical

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  • Compatibility

    LA-140-GY, LT-82, LA-365, LA-401, LA-405, LA-404, LA-403, LA-402, LA-430, LT-84, LA-141

  • Color

    Flat Black

  • Dimensions (H x W x D)

    Without Belt Clip: 3.75 x 2.0 x 0.64" (9.6 x 5.0 x 1.7cm)
    With Belt Clip: 3.75 x 2.0 x 0.80" (9.6 x 5.0 x 2.1cm)

  • Weight

    Without Batteries: 1.9 oz (53.9g)
    With Batteries: 2.8 oz (79.4g)

About Listen Technologies LP-51-IR

The LP-51-IR receiver pack gives you a convenient way to purchase all of the equipment needed to begin offering IR assistive listening or expand your existing system to accommodate more clients and customers. The package includes twelve (12) LR-5200-IR iDSP advanced personal receivers and one LA-381 Intelligent 12-unit charging tray, as well as neck loops/lanyards for each receiver and more.

The LR-5200-IR iDSP receiver from Listen Technologies is the smallest device of its kind, giving users a lightweight and convenient way to utilize your assistive listening technology. Each high-performance receiver offers unmatched sensitivity, range, and clarity, and the advanced green battery technology makes it more convenient and affordable for businesses and venues.

Each receiver features an OLED display for clearly communicating the channel name and status, battery charge level, and volume level. A programmable channel select button lets users cycle through the available/active channels, and the micro USB connection allows for easy setup, programming, and firmware updates.

The LA-381 drop-in charging/dispensing station for the Listen iDSP receivers provides a convenient way to charge, store, dispense, and collect ListenIR receivers. The tray accommodates all twelve (12) of the receivers included with the package, providing plenty of storage and charging capacity.

Get everything you need to offer industry-leading IR assistive listening to your customers, clients, visitors, and more with the LP-51-IR Advanced iDSP IR Receiver 12-pack from Listen Technologies.

Listen Technologies LP-51-IR Features

  • Complete package including twelve (12) LR-5200-IR receivers, neck loops/lanyards, charging tray, universal ear speakers, and more
  • Advanced-technology, high-performance receivers offer best-in-class range, clarity, and sensitivity
  • Ideal for starting or expanding an IR assistive listening system in your business or venue
  • Integrated neck loops/lanyards with DSP loop driver improve the listening experience for T-coil users
  • Drop-in tray charges and stores all twelve (12) included ListenIR iDSP personal listening receivers
  • Wall, drawer, rack, and tabletop mounting options allow for convenient installation and easy access
  • Tension locking charge slots ensure a secure fit and effective charging

Product Documents

User Manual

Key Features

  • Experience superior audio clarity with the Advanced Intelligent DSP IR Receiver.
  • Enjoy up to 8 hours of battery life for extended use in meetings or presentations.
  • Easily manage multiple channels with the intuitive user controls for seamless navigation.
  • Ensure clear communication with a wide frequency response of 63 Hz - 15 kHz.
  • Ideal for assistive listening, this system meets ADA 706 and CBC 11B-706 standards.
  • Charge up to 12 devices simultaneously with the included intelligent charging tray.

What's in the box:

  • 12x LR-5200-IR Advanced Intelligent DSP IR Receiver
  • 12x LA-430 Intelligent Ear Phone/Neck Loop Lanyard
  • 12x LA-401 Universal Ear Speaker
  • Non-Proprietary/Field Replaceable Lithium-ion Battery
  • LA-381 Intelligent 12-Unit Charging Tray
  • Quick Start Guide
  • Listen Technologies Lifetime Limited Warranty