Listen Technologies Intelligent DSP RF Receiver (72 MHz)

Listen Technologies Intelligent DSP RF Receiver (72 MHz)

Listen Technologies Intelligent DSP RF Receiver (72 MHz)

B&H # LILR4200072 MFR # LR-4200-072
Listen Technologies Intelligent DSP RF Receiver (72 MHz)

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  • 1Description

This 72 MHz Intelligent DSP RF Receiver from LISTEN Technologies is an iDSP (Intelligent Digital Signal Processing) personal listening product. With the DSP SQTM noise reduction technology, users experience 20 dB less noise than similar devices without it. The green battery technology dramatically 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
In the Box
Listen Technologies Intelligent DSP RF Receiver (72 MHz)
  • Non-Proprietary, Field Replaceable Lithium-Ion Battery
  • Quick Reference Card
  • Limited Lifetime Warranty
  • Table of Contents
    • 1Description
    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 0.2 lb
    Box Dimensions (LxWxH) 4.2 x 2.4 x 1.2"

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