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Z-LK-1 ListenTalk Transceiver

  • Simple and flexible communication at the touch of a button
  • Secure conversations through proprietary encryption technology
  • Reliable and dependable duplex operation

One-to-many communication systems are useful in a wide range of circumstances from tour guides in a museum, teaching a group of students in a lecture theatre, to event team management coordination.

Ampetronic™ ListenTALK is a powerful duplex solution for all group communication needs and tour guide applications. Due to its ability to operate in multiple modes and in different configurations it is also highly effective for translation and assistive listening.

ListenTALK offers

  • flexible configuration for multi-purpose applications
  • simple push button operation
  • proprietary encryption for secure communications
  • reliable duplex system working with low interference in the rarely used 1.9 GHz DECT band
  • multi-group function with up to 15 simultaneous two-way groups – ideal for tour guides
  • simple single interface, any unit can be set up to be leader or participant
  • create groups easily with near field communication (NFC) or a single button press
  • two way communication via a built in microphone on each unit, allows participants to ask questions of the leader
  • robust design for prolonged use

For more information on Ampetronic ListenTALK contact our expert team on: +44 (0) 1636 610062 or email: sales@ampetronic.co

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  • Features
  • Applications
  • Accessories
  • Standards
  • Specification
  • Downloads
    • Fast and simple two-way communication
    • Push-to-talk functionality
    • Exclusive encryption technology for added security
    • Compatible with standard earbuds and Listen Technologies headsets
    • Long-lasting lithium ion rechargeable batteries
    • Optional Alkaline Battery Compartment
    • Assistive listening
    • Translation and interpretation
    • Team communication
    • Tour guide
    • Conferencing and presentations
    • Z-LA-482-02 Docking Station 4
    • Z-LA-421 1-Port USB charger
    • Z-LA-435 ListenTALK AAA Battery Compartment
    • Z-LA-436 TS to TRRS Mic Adapter
    • Z-LA-440 Replacement Leader Clips (10 CT)
    • Z-LA-441 Replacement Ear cushions for headset 2 & 3 (10 CT)
    • Z-LA-451 Headset 1 (Ear speaker w/Boom mic)
    • Z-LA-452 Headset 2 (over head w/Boom mic)
    • Z-LA-453 Headset 3 (Over head dual w/Boom mic)
    • Z-LA-454 Headset 4 (Over ears Dual w/Boom mic)
    • Z-LA-455 Headset 5 (over ears Industrial w/Boom mic)
    • Z-LA-480-02 Docking Station 16
    • Z-LA-481-02 Docking Station Case 16
    • Z-LA-437 ListenTALK Line/Headset Mix Cable
  • FCC part 15, ICS-03, CE, RCM, RoHS, WEEE

  • Physical

    Dimensions (H x W x D) with Belt Clip10 x 5.4 x 2.4 cm (3.93 x 2.13 W x 0.93 in.)
    Unit Dimensions (H x W x D)10 x 5.4 x 1.6 cm (3.93 x 2.13 W x 0.63 in.)
    Unit Weight79 g (2.79 oz.)
    Shipping Weight206 g (7.20 oz) with 454 g (1.0 lbs.) minimum
    Enclosure materialPC ABS Plastic
    ColorBlack, Chrome Buttons
    IndicatorsDisplay- 64 x 128 OLED, Variable brightness
    LED- RED/White multifunction (Mute, Charge Status)
    User ControlsVolume up, Volume Down, Talk, Power/Status, Talk Modes, Pairing
    ProgrammingVia software and USB port on unit or via software and USB port on Docking Station
    ConnectionsHeadset- 3.5mm TRRS, CTIA complaint
    USB- Micro USB, Control and Charging
    Charger- 4 Contact, Control and Charging


    Headphone OutputSpeaker Load- 16 – 32 ohm load
    Max Output Power- 67 mW, 16 ohm load, Threshold of Clipping
    Side Tone- Adjustable
    Microphone InputCompatibility- Electret, external bias
    Bias- 3 volt, 2 mA Current Maximum
    Sensitivity Requirement -28 to – 50 dBV/Pa
    Internal MicrophoneSwitching- Auto detect on jack insertion or Manual
    Maximum Input Level- 109 DBSPL
    Gain- Adjustable, 30 dB range
    SystemFrequency 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


    Operating Frequency1920 to 1930 MHz – North America
    1880 to 1900 MHz – Europe, Australia
    Average Power4 mW – North America
    10 mW – Europe, Australia
    Typical RangeIndoor 100 m, Outdoor 200 m, depending upon conditions – North America
    Indoor 150 m, Outdoor 300 m, depending upon conditions – Europe, Australia
    ModulationGFSK – FHSS
    SecuritySubscription- 40 bit (Pin Free)
    Authentication- 32 bit
    Encryption- 64 bit
    NFC Frequency (Near Field Communications)13.56 MHz

    Power and Battery Management

    Battery TypeLithium – ion, rechargeable non-proprietary removable, 1200 mAh
    Optional- 3 AAA Battery Compartment
    Typical Operating TimeLi-ion- Participant- 12 Hours
    AAA – Participant Mode – 7 Hours
    Li-ion – Leader Mode – 7 hours
    AAA – Leader Mode – 4 hours
    Typical Charge time4 Hours
    Power Save ModesPower down on loss of signal
    Power down on disconnection of headset (1 min)
    Power down on charging


    TemperatureOperation- -10 °C (14 °F) to 40 °C (+104 °F)
    Storage- -20 °C (-4 °F) to 50 °C (+122 °F)
    Relative Humidity0 to 95% relative humidity, non-condensing


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