Clear
Overview

Designed to be the new standard for two-way mobile communications, the ListenTALK Transceiver is the smartest system available. The all-in-one device, equipped with Listen Technologies’ exclusive encryption technology and push-to-talk functionality, provides the simplest option for communication and collaboration among two or more people in any environment. In addition to the included Listen Ear Speaker, ListenTALK can be used with standard smartphone earbuds or a Listen Technologies headset.

Includes

One (1) LK-1 ListenTALK Transceiver w/Leader Clip
One (1) LA-365 Rechargeable Li-ion Battery
One (1) LA-401 Universal Ear Speaker
One (1) LA-445-BK Breakaway Lanyard

Highlights

  • 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
Configurations & Architectural Specs

Configurations

LK-1-A0 ListenTALK Transceiver (North America)
LK-1-E0 ListenTALK Transceiver (Europe EU28, Australia)

Architectural Specs

The transceiver shall be a digital transceiver operating on the 1.9 GHz unlicensed PCS band utilizing Frequency-Hopping Spread Spectrum (FHSS) techniques allowing interference free full duplex communication. The device shall employ a multiply layer security protocol consisting of a 40-bit (pin free) group subscription, 32-bit authentication and a 64-bit encryption scheme enabling secure conversations. It shall be easy to pair and form groups via Near-field communication (NFC), Docking Station or Software Suite. It shall be simple to operate with a Power, Talk and Volume Up and Down buttons. It shall allow up to 10 simultaneous groups to operate in the same area. It shall be powered via a removable non-proprietary rechargeable lithium-ion battery or via an optional 3 AAA alkaline battery compartment.

The transceiver shall have a 3.5 mm TRRS CTIA compliant headset connection allowing operation with a standard electret style headset. It shall have a built-in-microphone with auto detect circuitry if users elect to use their personal ear buds. It shall have a 64 x 128 OLED display with auto diming allowing display of all current status (group name, volume levels, mute, battery status, time remaining, signal strength, unit ID, mode, etc.) The device shall have a leader clip and when inserted the unit automatically designates itself as a leader and allows the leader/presenter to control pairing/group creation and leader talkback modes (listen only, leader only or group).

The transceiver shall have a signal-to-noise ratio of 70 dB or greater and shall have an audio frequency response of 40 Hz – 15 kHz (±3 dB). The device shall incorporate automatic battery charging circuitry to charge and maintain the lithium-Ion battery either via the micro USB port or via the docking station using the additional charging contacts on the bottom of the device.

The ListenTALK LK-1 is specified.

Product Specifications
SpecificationLK-1

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

Audio

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

Radio

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
TDD/TDMA/DCA
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

Environmental

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

Compliance

StandardsFCC part 15, ICS-03, CE, RCM, RoHS, WEEE

* Specifications subject to change without notice.
Used With

Docking Station 4

Convenient docking station specifically designed to charge, store, and program/update ListenTALK Transceivers. LA-482

Docking Station 16

Convenient docking station specifically designed to charge, store, and program/update ListenTALK Transceivers. LA-480

Docking Station Case 16

Docking station and carrying case for convenient charging, storage, programming, and transportation of ListenTALK tranceivers and headsets. LA-481

Headset 1 (Ear Speaker w/Boom Mic)

Single-earpiece headset and boom mic combination for convenient communication. LA-451

Headset 2 (Over Head w/Boom Mic)

Earpiece with integrated boom mic and over-the-head design for comfortable extended use. LA-452

Headset 3 (Over Head Dual w/Boom Mic)

Headset with dual earpieces and boom mic offering increased audio clarity. LA-453

Headset 4 (Over Ears Dual w/Boom Mic)

Dual over-the-ear speakers combined with a boom mic for improved sound isolation. LA-454

Headset 5 (Over Ears Industrial w/Boom Mic)

Boom mic and dual over-ear speakers designed for industrial or other high-noise environments. LA-455

ListenTALK Transceiver

Ideal for fast, clear, and secure communication with staff, team members and more. LK-1

ListenTALK Receiver Pro

A receiver with a display designed to listen to ListenTALK group conversations. LKR-11

ListenTALK Receiver Basic

A one-way receiver for participants that only need to listen to ListenTALK group conversations. LKR-12
Accessories

ListenTALK Protective Case

A slip-on protective case with belt clip, lanyard, and modified Leader Clip. LA-444

Headset 1 (Ear Speaker w/Boom Mic)

Single-earpiece headset and boom mic combination for convenient communication. LA-451

Headset 2 (Over Head w/Boom Mic)

Earpiece with integrated boom mic and over-the-head design for comfortable extended use. LA-452

Headset 3 (Over Head Dual w/Boom Mic)

Headset with dual earpieces and boom mic offering increased audio clarity. LA-453

Headset 4 (Over Ears Dual w/Boom Mic)

Dual over-the-ear speakers combined with a boom mic for improved sound isolation. LA-454

Headset 5 (Over Ears Industrial w/Boom Mic)

Boom mic and dual over-ear speakers designed for industrial or other high-noise environments. LA-455

Microphone Input / Headphone Output Cable

ListenTALK Headset Headphone/Microphone Splitter Cable LA-436

Breakaway Lanyard

Colorful Breakaway Lanyards LA-445

Metal D-Rings (50 CT)

D-Ring clips to the ListenTALK belt clip and allows a convenient connection point for customized lanyards. LA-448

Cable Management Pocket

Pocket attaches to a lanyard and stores excess ear speaker or headset cable. LA-446

Replacement Rechargeable Li-ion Battery

Rechargeable Lithium-ion battery ideal for Listen's compatible assistive listening products. LA-365

ListenTALK AAA Battery Compartment

Battery compartment to add alkaline battery compatibility to ListenTALK transceivers. LA-435

Replacement Leader Clips (10 CT)

Replacement Leader Clips (10) LA-440

Soft Shell Case 4

Soft Shell Case with formed foam insert to carry 4 ListenTALK Transceivers or iDSP Receivers LA-483

Road Case 16

Hard Case (Pelican) for use with ListenTALK and iDSP products. LA-484
FAQ
QHow many channels are available with ListenTALK?
AListenTALK uses 1.9GHz spread spectrum. It does not use “channels” because it is constantly changing frequencies.
QHow many participants can be in each ListenTALK tour group?
AIn a ListenTALK tour group there can be an unlimited number of participants.
QHow many groups in the same room can ListenTALK support?
AListenTALK's current specification is that you can have 10 simultaneous groups operating in the same room.
QHow many simultaneous groups will ListenTALK support?
AListenTALK supports up to 10 simultaneous groups within each service area. North America service area: 100 m indoor, 200 m outdoor, depending on conditions Europe service area: 150 m indoor, 300 m outdoor, depending of conditions
QListenTALK can have up to 10 groups in "one area". What does "one area" consist of?
AOne area consists of the typical range, which is 100 m indoors and 200 m outdoors depending on conditions (North America) and 150 m indoors and 300 m outdoors depending on conditions. (Europe version)
QWill iOS headsets work with ListenTALK?
AYes, all iOS headsets will function correctly with the ListenTALK Transceiver (LK-1)
QWill Android headsets work with ListenTALK?
AAndroid version headsets (roughly 2014 and newer) will function correctly. The older versions have a different microphone/ground configuration making them incompatible with the ListenTALK Transceiver (LK-1).
Systems Included In

ListenTALK Base-4 System

Two-way communication starter system including one headset and four transceivers. LKS-1

ListenTALK Base-8 System

Higher-capacity ListenTALK starter system including one headset and eight individual transceivers. LKS-2

ListenTALK Collabor-8 System

Complete two-way communications system including eight headsets and eight transceivers. LKS-3

ListenTALK Portable ADA Kit

ListenTALK Portable ADA Kit (4 transceivers) LKS-4-A1
FREE DEMO KIT
close slider