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The LR-3200-072 receiver from Listen Technologies offers outstanding audio clarity and quality with the best range and reception in its class.

Part of our Intelligent Digital Signal Processing (iDSP) line, the LR-3200-072 is the smallest device of its kind, resulting in a compact unit that won’t burden the end user. An integrated neck loop/lanyard makes each receiver easy to wear, and the DSP loop driver offers an improved listening experience for anyone with a T-coil-equipped hearing aid. Dual 3.5mm output jacks also allow receivers to be shared between users.

Each receiver is equipped with a micro USB connection which can be used with free iDSP software for charging, set up, programming, inventory management and firmware updates.

Extended speaking sessions, presentations and more can be challenging for other devices, but the LR-3200-072 incorporates advanced Lithium-ion rechargeable batteries that offer long life and reliable power.


One (1) LR-3200-072 Intelligent DSP RF Receiver (72 MHz)*


*The LR-3200-072 comes with a quick start guide and a non-proprietary field replaceable Lithium-ion battery.


  • RF receiver offering best-in-class sensitivity and sound
  • 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
  • Limited lifetime warranty with hassle-free support
  • 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
Configurations & Architectural Specs


LR-3200-072 Basic DSP RF Receiver (72 MHz)

Architectural Specs

The RF receiver shall be capable of receiving on one of 3 default wide band channels (A, E, H).  The receiver shall tune to a single channel and user shall not be able to change the channel. The receiver shall have a signal-to-noise ratio of 70 dB or greater with DSP SQTM noise reduction technology disabled and 80 dB or greater with SQTM enabled and shall have an audio frequency response of 50 Hz – 15 kHz (±3 dB).  The receiver shall have the option of being lanyard or belt clip worn and the lanyard shall have the option of an integrated neck loop. The receiver shall have a USB connector used for inventory control, set up, charging and firmware upgrades. The receiver shall incorporate automatic battery charging circuitry and use a non-proprietary lithium ion battery. The receiver shall fully charge in under 2.5 hours and have a battery run time of over 24 hours. The receiver shall have additional charging contacts to allow multiple charging options.  The Listen LR-3200-072 is specified.

Product Specifications
Specification LR-3200-072


System Distortion < 1% total harmonic distortion (THD) at 80% deviation
Output/s Two (2) 3.5 mm (0.14 in.) connectors, unbalanced, 0 dBu nominal output level, 50 mW maximum, impedance 32 ohm
System Frequency Response 50 Hz - 15 kHz (±3 dB)
System Signal to Noise Ratio SQ disabled 70 dB, SQ enabled 80 dB


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


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


Frequency Range 72.0250 - 75.9500 MHz
Number of Channels Basic Mode: 3 wide Band, Expand Mode: 17 wide band
Sensitivity .6uV typical, 1 uV maximum for 12 dB sinad
Frequency Accuracy ± .005% stability 32 to 122 ºF (0 to 50 ºC)
Squelch Fixed level, automatic on loss of RF signal
Antenna Type Uses ear phone/neck loop lanyard and short ear phone cable or standard earphone cable


Battery Type Lithium Ion 3.7 Vdc, 1200 mAh
Battery Life 24 Hours of continuous use
Battery Charging Time Fully charged in 2.5 Hours
Power Supply Micro USB connector, 5 V, 500 mA


Color Black
Unit Weight 1.60 oz. (45 g)
Unit Weight with Batteries 2.40 oz. (68 g)
Shipping Weight 3.20 oz. (91 g) with 1.0 lbs. (454 g) minimum
Dimensions (H x W x D) 3.75 x 2.00 x 0.64 in. (9.6 x 5 x 1.7 cm)
Dimensions with Belt Clip 3.75 x 2.00 x 0.80 in. (9.6 x 5.0 x 2.1 cm)


Temperature - Operation 14 to 104 ºF (-10 to 40 ºC)
Temperature - Storage (-)4 to 122 °F (-20 to 50 °C)
Relative Humidity 0 to 95% relative humidity, non-condensing


Standards FCC Part 15 Class B, Industry Canada ICES-3 (B), RoHS
Used With
Q What is the purpose of Squelch?
A The purpose of squelch is to mute the audio output of your receiver when the signal from the transmitter is turned off or is too weak to be received. Without squelch you would hear radio noise in your earphone. The squelch function can be programmed to the desired setting.
Q What is the function of SQ?
A To reduce noise of the systems, Listen offers a noise reduction technology called ListenSQ™. Both the transmitter and receiver must have SQ on to achieve the desired results. If you are planning to use this product with older Listen systems or equipment not manufactured by Listen, you should disable SQ.
Q What is the warranty on the Lithium-ion battery?
A The Lithium-ion battery has a 1 year warranty. All other accessories have a 90-day warranty. Listen Warranty
Systems Included In
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