The LR-4200-072 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-4200-072 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-4200-072 incorporates advanced Lithium-ion rechargeable batteries that offer long life and reliable power. Charge status, along with channel information and volume level, are easy to read on the integrated OLED display.
From classrooms to boardrooms, conferences and more, the LR-4200-072 is an outstanding receiver choice for any venue looking to offer convenient, reliable assistive listening.
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
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
One (1) LR-4200-072 Intelligent DSP RF Receiver (72 MHz)*
*The LR-4200-072 comes with a quick start guide and a non-proprietary field replaceable Lithium-ion battery.
< 2% total harmonic distortion (THD) at 80% deviation
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
Power, up/down volume
Via software and USB port
Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel
Flashes when batteries are low or to indicate charging, solid when fully charged
Channel designation, battery level, unit number, charging status
72.0250 - 75.9500 MHz
Number of Channels
17 wide band, 40 narrow band
.6uV typical, 1 uV maximum for 12 dB sinad
± .005% stability 32 to 122 ºF (0 to 50 ºC)
Programmable in 20 steps, automatic on loss of RF signal
Uses ear phone/neck loop lanyard and short ear phone cable or standard earphone cable