Listen Technologies LS-88-01 Portable ListenIR iDSP System - Contains Li-ion Battery

LS-88-01 - Overview

From classrooms to conferences, boardrooms to jury deliberation spaces and more, the LS-88-01 gives you a complete package to begin offering on-demand assistive listening right away.

• Features:

  • Pre-configured transmitter/radiator, receivers, microphone and more for immediate assistive listening wherever it is needed
  • Offers ideal coverage for small to medium venues with up to 50 seats
  • Easy to set up, tear down, and transport
  • Offers crystal-clear audio performance in classrooms, conferences, boardrooms and more
  • Multiple receivers, neck loop/lanyards, and ear speakers are included
   

• Specifications:

  • Transmitter: Audio
  • Frequency Response: 20 Hz - 20 kHz (+/- 1 dB) Line Input63 Hz - 15 kHz (+/- 3 dB) System Specification (wireless end-to-end with LR-44)
  • Signal-to-Noise Ratio: > 70 dB (SNR) Line Input> 60 dB (SNR) System Specification (wireless end-to-end with LR-44)
  • Microphone Input: Two (2) 3.5 mm (0.14 in.) Tip/Sleeve connector, -30 dBu nominal input, +14 dB headroom, impedance 4.4k Ohms, 5 VDC bias supply
  • Total Harmonic Distortion: < 0.1% (THD) Line Input< 2% (THD) System Specification (wireless end-to-end with LR-44)
  • Unbalanced Line Input: Stereo/Mono Input. Two (2) Dual (RCA) Phono connectors, unbalanced, -10 dBu nominal input, +14 dB headroom, impedance 10k Ohms
  • Balanced Line Input: Mono Input. Two (2) Phoenix Type connector, balanced, + 4 dBunominal input, +14 dB headroom, impedance 100k Ohms
    
    Transmitter: Controls
  • Temperature - Operation: 14 Degree F (-10 Degree C) to +104 Degree F (40 Degree C)
  • Temperature - Storage: -4 Degree F (-20 Degree C) to +122 Degree F (50 Degree C)
  • Relative Humidity: 0 to 95% relative humidity, non-condensing
    
    Transmitter: Physical
  • Counting: Can be mounted on a wall, ceiling, or table with provided hardware (screws and hollow wall anchors not provided). Optional LA-347 Wall Box Mounting Plate is available for mounting to a standard single gang electrical box.
  • Compatibility: LR-42, LR-44, LPT-A117, LA-141, LR-4200-IR, LR-5200-IR, LR-4200-IR-P1, LR-5200-IR-P1, LP-40-IR-01, LP-41-IR, LP-50-IR, LP-51-IR, LR-X200-IR
  • Dimensions (H x W x D): 1.5 x 10.7 x 4.1" (3.81 x 27.2 x 10.5cm)
  • Weight0.8 lb (0.4kg) with Power Supply: 1.8 lb (0.8kg)
    
    Receiver: Audio
  • System Distortion: < 2% total harmonic distortion (THD) at 80% deviation
  • Audio Output Jacks: Two (2) 3.5 mm (0.14 in.) 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
  • System Frequency Response: 63 Hz - 15 kHz ( +/-3 dB)
  • System Signal to Noise Ratio: > 60 dB
    
    Receiver: Controls
  • User Controls: Power on/off and volume up/down
  • Programming: Via software and USB port, Auto Seek, Jack Sense, Squelch, Auto Power, Auto Off, Stereo, Brightness, Channel Name
  • Set-up Controls: Press and hold up/down volume buttons for 5 seconds to enterchannel adjust, use up/down to select channel
    
    Receiver: Indicators
  • Display: OLED - Channel designation, battery level, unit number, charging status, volume status
  • LED: Flashes when batteries are low or to indicate charging, solid when fully charged
    
    Receiver: 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 Degree F (0 to 50 Degree C)
  • Modulation: FM Wideband, +/-50 kHz deviation max, 50 uS de-emphasis
    
    Receiver: IR
  • Coverage Area: 30,000 sq. ft (2787 sq. m) single channel with LT-84/LA-141 or 40,000 sq. ft (3716 sq. m) single channel with LT-82/LA-140
  • 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
  • Sensitivity: Better than one (1) nW/cm2 @40 dB SNR
    
    Receiver: Power
  • Power Supply: Micro USB connector, 5 V, 500 mA
  • Battery Type: Lithium Ion
  • Battery Life: 8 Hours of typical use
  • Battery Charging Time: Fully charged in 2.5 Hours
    
    Receiver: Environmental
  • Temperature - Operation: 14 to 104 Degree F (-10 to 40 Degree C)
  • Temperature - Storage: -4 to 122 Degree F (-20 to 50 Degree C)
  • Relative Humidity: 0 to 95% relative humidity, non-condensing
    
    Receiver: Physical
  • Compatibility: LA-140-GY, LT-82, LA-365, LA-401, LA-381, LA-405, LA-404, LA-403, LA-402, LA-380, LA-430, LT-84, LA-141, LA-382
  • Dimensions (H x W x D): Without Belt Clip: 3.75 x 2.0 x 0.64" (9.6 x 5.0 x 1.7cm) With Belt Clip: 3.75 x 2.0 x 0.80" (9.6 x 5.0 x 2.1 cm)
  • Weight: Without Batteries: 1.9 oz (53.9g) With Batteries: 2.8 oz (79.4g)
   

• Item Includes:

  • 1x LT-84-01 ListenIR Transmitter/Radiator Combo
  • 2x LR-4200 IR Intelligent DSP IR Receiver
  • 2x LA-430 Intelligent Ear Phone/Neck Loop Lanyard
  • 2x LA-401 Universal Ear Speaker
  • 1x LA-277 Conference Microphone
  • 1x LA-338 Table Top Tripod
  • 1x LA-346 Carrying Case
  • 1x LA-423 4-Port USB Charger
   

• Warranty:

  • LT-84 Transmitter/Emitter: 3-Year Limited Warranty
  • LR-4200-IR receiver: 5-Year Limited Warranty
  • LA-430 Intelligent Ear Phone/Neck Loop Lanyard: 1-Year Limited Warranty
  • LA-401 Universal Ear Speaker: 1-Year Limited Warranty
  • LA-277 Conference Microphone 1-Year Limited Warranty
  • LA-338 Table Top Tripod: 1-Year Limited Warranty
  • LA-346 Carrying Case: 1-Year Limited Warranty
  • LA-423 4-Port USB Charger: 1-Year Limited Warranty