Listen Technologies LR-4200-IR Intelligent DSP IR Receiver

The LR-4200-IR receiver is one of Listen Technologies' new generation of personal listening products, iDSP or Intelligent Digital Signal Processing.

The LR-4200-IR is a high performance IR receiver with extreme sensitivity providing the best pickup and range of any device of its kind. iDSP is the smallest device of its kind, making it easy for the end user to wear and operate and easier for the venues to dispense, store and maintain. The integrated neck loop/lanyard with DSP loop driver, improves the listening experience for T-coil users. The advanced 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 LR-4200-IR has an OLED display which shows unique channel names, battery status, channel status, volume status and charge activation. Connect the iDSP neck loop/lanyard or ear phones via two 3.5 mm output jacks (receivers can be shared). The Micro USB connection is used with the free iDSP software suite for set up, programming, inventory management, firmware updates and charging via any standard USB port. The LR-4200-IR is compatible with all iDSP accessories.

The result is an exceptional listening experience in small-to-medium places where it’s hard to hear - theaters, boardrooms, classrooms, courtrooms, houses of worship, and more.

Listen Technologies LR-4200-IR Includes:

• One (1) LR-4200-IR Intelligent DSP IR Receiver*
• One (1) Quick Start Guide
• *The LR-4200-IR comes with a non-proprietary, field replaceable Lithium-ion battery.

Listen Technologies LR-4200-IR Features:

• High performance IR receiver with extreme sensitivity providing the best pickup and range of any device of its kind
• Integrated neck loop/lanyard with DSP loop driver improves the listening experience for T-coil users
• Smallest device of its kind makes it easier to wear and use and for venues to dispense, store and maintain
• OLED display which shows unique channel names, battery status, channel status, volume status and charge activation
• Limited Lifetime Warranty with hassle-free support
• Can be worn around the neck or with the belt clip, making it the most discreet listening device on the market
• Advanced green battery technology dramatically reduces costs of ownership and hassles while reducing the number of batteries in the landfill
• Use for single channel applications

Listen Technologies LR-4200-IR Specifications:

• Audio
  • System Frequency Response: 63 Hz - 15 kHz (± 3 dB)
  • System Signal to Noise Ratio:
    • Mono: >60 dB
    • Stereo: >52 dB
  • System Distortion:
  • Audio Output Jacks: Two (2) 3.5mm (0.14") connectors, unbalanced, 0 dBu nominal output level, 16 mW maximum, impedance 32 ohm, accepts mono or stereo phone plug or LA-430 Intelligent Ear Phone/Neck Loop Lanyard
• Controls
  • User Controls: Power on/off and volume up/down
  • Set-up Controls: Press and hold up/down volume buttons for 5 seconds to enter channel adjust, use up/down to select channel
  • Programming: Via software and USB port
• Indicators
  • LED: Flahses when batteries are low or to indicate charging, solid when fully charged
  • Display: OLED - Channel designation, battery level, unit number, charging status, volume status
• RF
  • Carrier Frequencies: 2.3 MHz, 2.8 MHz, 3.3 MHz, 3.8 MHz
  • Number of Channels: Four (4) selectable channels
  • Frequency Accuracy: ± .005% stability 32 to 122 °F (0 to 50 °C)
  • Modulation: FM Wideband, ±50 kHz deviation max, 50 uS de-emphasis
• IR
  • Sensitivity: Better than one (1) nW/cm2 @ 40 dB SNR
  • Squelch: Programmable in 20 steps, automatic on loss of IR signal
  • Power Save Mode: Turns unit off after a specified time of no IR signal, default is 30 minutes
  • Coverage Area: 30,000 ft² (2787 m²) single channel with LT-84/LA-141 or 40,000 ft² (3716 m²) single channel with LT-82/LA-140
• Power
  • Battery Type: Lithium Ion
  • Battery Life: 8 Hours of typical use
  • Battery Charging Time: Fully charged in 2.5 hours
  • Power Supply: Micro USB connector, 5 V, 500 mA
• Physical
  • Dimensions (H x W x D): 3.75" x 2.0" x 0.64" (9.6 x 5.0 x 1.7 cm)
  • Dimensions with Belt Clip: 3.75" x 2.0" x 0.80" (9.6 x 5.0 x 2.1 cm)
  • Unit Weight: 1.9 oz. (53.9 g)
  • Unit Weight with Batteries: 2.8 oz. (79.4 g)
  • Shipping Weight: 3.5 oz. (99.2 g) with a 1 lbs. (0.45 kg) minimum
  • Color: Flat Black
• Environmental
  • Temperature - Operation: 14° to 104ºF (-10° to 40ºC)
  • Temperature - Storage: (-)4° to 122°F (-20° to 50°C)
  • Relative Humidity: 0 to 95% relative humidity, non-condensing
• Compliance
  • Standards: FCC Part 15, ICS-03, CE, RoHS, WEEE