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LK-1 Transceiver

Tour Guide Tranceivers

ListenTALK Tour Guide Communication System Tranceivers. Wireless Tour Guide transmitters and receivers in a single unit.

LK-1 Transceiver

Price: $452.00

Designed to be the new standard for two-way mobile communications, the ListenTALK LK-1 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 ListenTALK headset.

Includes

One (1) LK-1 ListenTALK Transceiver with Leader Clip
One (1) LA-365 Rechargeable Li-ion Battery
One (1) LA-401 Universal Ear Speaker
One (1) LPT-A207 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

Product Specifications
‍
Physical

Dimensions (H x W x D) with Belt Clip

10 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 Weight

79 g (2.79 oz.)

Shipping Weight

206 g (7.20 oz) with 454 g (1.0 lbs.) 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 compliant

USB- Micro USB, Control and Charging

Charger- 4 Contact, Control and Charging

Audio

Connections/s

Male 3.5 mm (TRRS), CTIA compliant

Audio

Headphone Output

Speaker Load- 16 - 32 ohm load

Max Output Power- 67 mW, 16 ohm load, Threshold of Clipping

Side Tone- Adjustable

Connections

Headset- 3.5mm TRRS, CTIA compliant

USB- Micro USB, Control and Charging

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

Average Power

4 mW - North America

10 mW - Europe, Australia

Typical Range

Indoor 100 m, Outdoor 200 m, depending upon conditions - North America

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

Li-ion- Participant- 12 Hours

Typical Operating Time

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

Compliance

Standards

Pending (FCC part 15, ICS-03, CE, RCM, RoHS, WEEE)

Related Products

LA-423 4-Port USB Charger

Price: $50.00

LA-480 Docking Station (16)

Price: $617.00

LA-481 Docking Station in Case (16)

Price: $910.00

LA-435 AAA Battery Compartment

Price: $18.00

Architectural Specifications

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.