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Listen Technologies LR-300 Digital Receiver 72MHz
SKU: 597
List Price: $115.00
Our Price: $99.00
Your Savings: $16.00
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The LR-300 Portable Digital RF Receiver is a low cost digital receiver. It has the same exceptional audio quality as Listen’s full-featured receivers and the same convenient recharging options. The LR-300 utilizes the 17 most common wide band channels, with a SEEK channel selection button behind the door panel. The LR-300 does not use an LCD, but instead a multi-function LED. The LR-300 is available for use with only on the 72 MHz frequency. This product is approved by the FCC for use in the US. Please note that they cannot be used in all countries. Check with your local government or specific regulation with regard to broadcast frequency in your specific country. Note: FCC rules limit the use of this product to assistive listening.



  • Superior audio quality – 80 dB signal-to-noise ratio (SNR), setting the industry’s sound quality standard

  • 17 channels

  • 100 % Digital – Listen receivers are digitally-tuned so the transmission won’t drift

  • Limited Lifetime Warranty with hassle-free support

  • Uses standard alkaline or nickel-metal hydride(NiMH) batteries

  • Built in SmartCharge™ won’t allow batteries to overcharge. Charging circuitry is conveniently built into Listen’s receivers

  • Drop in charging contacts for any of Listen’s many charging cases or a charging plug on the side of the unit

  • Many accessory options make Listen products ideal for a wide range of applications




Frequency Response

System: 63 Hz - 10 kHz (±3 dB)

Signal to Noise Ratio

80 dB SQ enabled, 50 dB SQ disabled (A Weighted)

Audio Output Jacks

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


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


User Controls

SEEK, volume, Alkaline/NiMH batteries, SQ enable/disable


Channel lock





Red, illuminated when unit is on, flashes when batteries are low or to indicate charging, flashes when locked and SEEK is pushed


Frequency Range

72.025 – 75.975 MHz

No. of Channels

17 wide band


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

Frequency Accuracy

± .005% stability +32 ºF to +122 ºF (0 ºC to +50 ºC)



Yes, non-adjustable

Antenna Type

Uses earphone cable


Power Supply

I/P 120 VAC; O/P 7.5 VDC 250 mA, drop in contact points for use with charging cases, power supply not included (LA-208)

Power Supply Connector

2.3 mm OD by 0.7 mm ID, barrel type connector 7.5 VDC, center positive <250 mA, drop in contact points for use with Listen charging cases

Battery Type

Two (2) AA batteries, alkaline or NiMH

Battery Life

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

Battery Charging Time

Fully automatic, 13 hours


RoHS, WEEE, UL, PSE, CE, CUL, TUV, CB compliant


Dimensions (H x W x L)

4.25 in. (10.8 cm) x 2.75 in. (7.0 cm) x 1.50 in. (3.8 cm)


Dark Grey w/ white silk screening

Unit Weight w/ Batteries

5.8 oz. (164 g)

Shipping Weight

1.0 lbs. (0.5 kg)


3.9 oz (111 g)


Manually lockable, SEEK behind door


Temperature – Operation

-10°C (14°F) to + 40°C (104°F)

Temperature – Storage

-20°C (-4°F) to + 50°C (122°F)

Relative Humidity

0 to 95% Relative Humidity, non condensing





FCC Part 15, Industry Canada

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