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Listen Technologies Intelligent DSP RF Receiver (72 MHz)

BH #LILR4200072 • MFR #LR-4200-072
1 review
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Listen Technologies Intelligent DSP RF Receiver (72 MHz)
Key Features
  • Intelligent Digital Signal Processing
  • Noise Reduction Technology
  • 20 dB Less Noise
  • Green Battery Technology
This 72 MHz Intelligent DSP RF Receiver from LISTEN Technologies is an iDSP (Intelligent Digital Signal Processing) personal listening product. Thanks to its DSP SQTM noise reduction technology, users experience 20 dB less noise than similar devices without it. The green battery technology reduces costs of ownership and hassles while reducing the number of batteries in landfills. A field-replaceable lithium-ion battery is included with the unit. The integrated neck loop/lanyard with DSP loop driver improves the listening experience for T-coil users. This iDSP device is small and easy to wear, dispense, store and maintain.

The LR-4200-072 has an OLED display to program channel names, monitor battery status, channel status, and charge activation. You may connect the iDSP neck loop/lanyard or earphones via two 3.5 mm output jacks and receivers can be shared. The micro-USB connection is used with free iDSP software for charging, set up, programming, inventory management and firmware updates. This listening device is suited for places where it's difficult to hear, such as theaters, lecture halls, concert venues, and houses of worship.
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Listen Technologies LR-4200 Overview

This 72 MHz Intelligent DSP RF Receiver from LISTEN Technologies is an iDSP (Intelligent Digital Signal Processing) personal listening product. Thanks to its DSP SQTM noise reduction technology, users experience 20 dB less noise than similar devices without it. The green battery technology reduces costs of ownership and hassles while reducing the number of batteries in landfills. A field-replaceable lithium-ion battery is included with the unit. The integrated neck loop/lanyard with DSP loop driver improves the listening experience for T-coil users. This iDSP device is small and easy to wear, dispense, store and maintain.

The LR-4200-072 has an OLED display to program channel names, monitor battery status, channel status, and charge activation. You may connect the iDSP neck loop/lanyard or earphones via two 3.5 mm output jacks and receivers can be shared. The micro-USB connection is used with free iDSP software for charging, set up, programming, inventory management and firmware updates. This listening device is suited for places where it's difficult to hear, such as theaters, lecture halls, concert venues, and houses of worship.

DSP SQTM noise-reduction technology delivers 20 dB less noise and hiss than devices without it
Integrated neck loop/lanyard with DSP loop driver improves the listening experience for T-coil users
Small size makes it easy to wear and for venues to dispense, store, and maintain
Can be worn around the neck with the belt clip, or concealed in a pocket, making it a discreet listening device
Green battery technology reduces cost of ownership and hassle while reducing the number of batteries landfills
Use for single-channel applications
UPC: 819267022249

Listen Technologies LR-4200 Specs

Audio
Frequency Response
63 Hz to 15 kHz (+/- 3 dB)
Signal to Noise Ratio (SNR)
SQ enabled 80 dB, SQ disabled 60 dB
System Distortion
<2% total harmonic distortion (THD) at 80% deviation
Output
2 x 3.5 mm connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, 32-Ohm impedance
Controls
User Controls: Power, up/down volume
Programming: Via software and USB port
Indicators
Display: Channel designation,battery level, unit number, charging status
LEDs: Flashes when batteries are low or to indicate charging, solid when fully charged
RF System
Number of Channels
17 wideband, 40 narrowband
Sensitivity
0.6 uV typical, 1 uV maximum for 12 dB sinad
Frequency Accuracy
+/- 0.005% stability 32 to 122ºF / 0 to 50ºC
Antenna Type
Phone/neck loop lanyard and short earphone cable or standard earphone cable
Squelch
Programmable in 20 steps, automatic on loss of RF signal
Frequency Range
72.0250 to 75.9500 MHz
Power
Battery Type
Lithium Ion 3.7 VDC, 1200 mAh
Battery Life
8 hours of continuous use
Charging Time
Fully charged in 2.5 hours
General
Color
Black
Environmental
Operation temperature: 14 to 104°F / -10 to 40°C
Storage temperature: -4 to 122°F / -20 to 50°C
Relative humidity: 0 to 95% relative humidity, non-condensing
Compliance
FCC Part 15, Part 90, Industry Canada, RoHS
Dimensions
Unit: 3.75 x 2.00 x 0.64" / 9.6 x 5 x 1.7 cm
Unit with belt clip: 3.75 x 2.00 x 0.80" / 9.6 x 5.0 x 2.1 cm
Weight
With batteries: 2.40 oz / 68 g
Unit weight: 1.60 oz. / 45 g
Packaging Info
Package Weight
0.215 lb
Box Dimensions (LxWxH)
4.45 x 2.4 x 1.2"

Listen Technologies LR-4200 Reviews

Personal use with tele-coil hearing aids

By Darlene
Rated 4 out of 5
Date: 2022-10-16

Purchased for my own use at a venue where receivers are not available to the public. I also purchased the LA-430 Neck Loop Lanyard & I wear hearing aids that have tele-coils. The receiver is lightweight, with a rechargeable battery. The technical support team at Listen Technologies is very helpful & congenial. Don't hesitate to contact them with questions. The sound quality you experience varies depending on things over which the user probably has no control - signal strength & user's distance from the FM transmitter. See if you can borrow a unit & test it out beforehand to get a feel for what your experience might be where you plan to use it. The FM receiver & Neck Loop Lanyard were delivered less than 24 hours from when I ordered them online. I live about 250 miles from New York. I don't know how they got it to me so quickly. Way to go B&H Photo & FedEx!

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