• Listen Technologies LK-1 ListenTALK Transceiver set
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Listen Technologies LK-1 ListenTALK Transceiver With Encryption

Listen Technologies LK-1 ListenTALK Transceiver With Encryption

SoundPro Item: 60241 | Part Number: LK-1-A0

$426.00
$498.00 $426.00
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MSRP: $498.00 | MAP: $426.00

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  • Push-To-Talk Functionality Maintains Clear Channels During Multi-Party Group Communication
  • 64-Bit Encryption Protocol Secures Proprietary Content For Corporate And Facility Tours
  • DECT Frequency-Hopping Spread Spectrum Avoids Wi-Fi And UHF Band Congestion
  • Standard Smartphone Earbud Compatibility Eliminates Dedicated Headset Inventory Requirements
  • NFC Pairing Accelerates Deployment For Rental And Staging Turnover Cycles
  • Dual Battery Options Support Field Swaps With Rechargeable Or AAA Emergency Power
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The ListenTALK system addresses the critical need for mobile two-way communication in museums, corporate events, and accessibility scenarios where traditional one-way assistive listening falls short. Designed for integrators and AV teams supporting guided tours, multilingual interpretation, and production coordination, it delivers encrypted DECT wireless with simultaneous talk and listen capability across distributed groups.

Push-to-talk operation keeps channels clear during multi-party exchanges, while 64-bit encryption ensures content security for corporate briefings and proprietary facility tours. The unit works with standard smartphone earbuds or professional Listen Technologies headsets, eliminating the need for dedicated inventory. Rechargeable lithium-ion batteries provide 12-hour participant runtime or 7-hour leader mode operation, with optional AAA compartment for emergency field swaps.

DECT frequency-hopping architecture avoids Wi-Fi and UHF congestion common in convention centers and dense urban installations. NFC pairing accelerates deployment for rental and staging teams managing rapid turnover. OLED display and intuitive controls reduce training time for non-technical tour guides and volunteer staff.

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  • Physical
    • Dimensions (HxWxD) with Belt Clip: 3.93x2.13x0.93" (10x5.4x2.4 cm)
    • Unit Dimensions (HxWxD): 3.93x2.13x0.63"(10x5.4x1.6 cm)
    • Unit Weight: 2.79 oz (79 g)
    • Shipping Weight: 7.20 oz (206 g) with 1 lb (454 g) minimum
    • Enclosure material: PC ABS Plastic
    • Color: Black, Chrome Buttons
    • Indicators
      • Display- 64 x 128 OLED, Variable brightness
      • LED- RED/White multifunction (Mute, Charge Status)
    • User Controls: Volume up, Volume Down, Talk, Power/Status, Talk Modes, Pairing
    • Programming: Via software and USB port on unit or via software and USB port on Docking Station
    • Connections
      • Headset- 3.5mm TRRS, CTIA complaint
      • USB- Micro USB, Control and Charging
      • Charger- 4 Contact, Control and Charging
  • Audio
    • Headphone Output
      • Speaker Load- 16 - 32 ohm load
      • Max Output Power- 67 mW, 16 ohm load, Threshold of Clipping
      • Side Tone- Adjustable
    • Microphone Input
      • Compatibility- Electret, external bias
      • Bias- 3 volt, 2 mA Current Maximum
      • Sensitivity Requirement -28 to - 50 dBV/Pa
    • Internal Microphone
      • Switching- Auto detect on jack insertion or Manual
      • Maximum Input Level- 109 DBSPL
      • Gain- Adjustable, 30 dB range
    • System
      • Frequency Response- 40 Hz to 15 kHz +/- 3dB, 22kHz low pass filter
      • SNR- 70 dB, A- weighted, Threshold of Clipping
      • THD- 0.5% @ 1kHz, 22kHz low pass enabled
  • Radio
    • Operating Frequency
      • 1920 to 1930 MHz - North America
      • 1880 to 1900 MHz - Europe, Australia
      • 1895 to 1905 MHz - Japan
    • Average Power
      • 4 mW - North America
      • 10 mW - Europe, Australia
      • 5 mW - Japan
    • Typical Range
      • Indoor 100 m, Outdoor 200 m, depending upon conditions - North America, Japan
      • Indoor 150 m, Outdoor 300 m, depending upon conditions - Europe, Australia
    • Modulation
      • GFSK - FHSS
      • TDD/TDMA/DCA
    • Security
      • Subscription- 40 bit (Pin Free)
      • Authentication- 32 bit
      • Encryption- 64 bit
    • NFC Frequency (Near Field Communications): 13.56 MHz
  • Power and Battery Management
    • Battery Type
      • Lithium – ion, rechargeable non-proprietary removable, 1200 mAh
      • Optional- 3 AAA Battery Compartment
    • Typical Operating Time
      • Li-ion- Participant- 12 Hours
      • AAA – Participant Mode – 7 Hours
      • Li-ion – Leader Mode – 7 hours
      • AAA – Leader Mode – 4 hours
    • Typical Charge time 4 Hours
    • Power Save Modes
      • Power down on loss of signal
      • Power down on disconnection of headset (1 min)
      • Power down on charging
  • Environmental
    • Temperature: Operation- -10 °C (14 °F) to 40 °C (+104 °F)
    • Storage:- -20 °C (-4 °F) to 50 °C (+122 °F)
    • Relative Humidity: 0 to 95% relative humidity, non-condensing
  • ComplianceStandards: FCC part 15, ICS-03, CE, RCM, MIC, RoHS, WEEE

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