User manual
Listen Technologies LKS-2 Base 8 System

User Manual for Listen Technologies LKS-2 Base 8 System with 8 Transceivers, 1 Headset and Docking Station Case

• Product category: Assistive Listening Systems Listen Technologies
• Brand: Listen Technologies
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Listen Technologies Assistive Listening Systems

Product description

• LK-1 ListenTALK Transceiver with Lanyard, Ear Speaker, and Battery
  • Listen Technologies - ListenTALK Product Video
  • ListenTALK How To - Creating a Group
  • ListenTALK How To - Pairing Via Tray
  • ListenTALK How To: Modes
  • ListenTALK How To - Software Pairing
  • ListenTALK How To - Jack Sense Overview
  The Listen Technologies LK-1 is a transceiver designed for two-way mobile communications. It utilizes Listen Technologies’ proprietary encryption technology to ensure security, and provides easy-to-use, push-to-talk implementation in the field for simple coordination and communication among two or more collaborators in any scenario.User controls such as volume up, volume down, talk, power/status, and pairing help you in tailoring the unit to your particular, moment-to-moment needs. Though the unit can be used with a Listen Technologies headset—or standard smartphone earbuds—the LK-1 comes with an LA-401 Universal Ear Speaker, as well as a lanyard (useful for on-the-go scenarios), and an LA-365 rechargeable lithium-ion battery. The LK-1 is fully compliant with ADA standards for assistive listening. UPC: 819267021884
• LA-452 On-Ear Headset with Boom Mic (Single-Ear) The Listen Technologies LA-452 is an over-the-head, on-ear headset with a single-eared construction. It’s designed to be used with two-way communications devices such as the ListenTALK LK-1 Transceiver. The over-the-head construction provides both comfort and a secure fit, while its built-in boom mic facilitates hands-free communication. With a unidirectional polar pattern and noise-reduction technology, the on-board microphone offers clear amplification of your voice—and your voice alone. A 3.5mm TRRS connection point is compatible with many two-way systems. Lightweight at 2.2 oz, the LA-452's single-eared construction promotes audio clarity in its signal path without blocking outside sounds, thus allowing you to hear both your surroundings and the headphones. UPC: 123456789098
• Docking Station Case 16 The Listen Technologies LA-481 Docking Station Case 16 provides all the charging possibilities of the LA-480, but also offers a portable, secure carrying case. The docking station itself boasts charging slots for up to 16 ListenTALK transceivers and headsets. Each slot utilizes a tension lock to facilitate a secure connection while your devices are charging. You can also pair transceivers directly from the dock in much the same way as you can with the LA-480; simply put the leader's transceiver in the red-ringed slot, put other models in any other slot, press the pair button, and a group will be instantiated automatically.Furthermore, each empty slot can double as a placeholder for an ID card, ticket, or whatever stand-in you choose when lending out a transceiver/headset; this helps keep your array of ListenTALK technologies organized.In addition to its 16 individuated charging slots, the case also sports two large pockets for storing earphones in a tangle-free fashion, as well as other apposite items. Durable latches secure the case, while an included shoulder strap allows you to transport it in a convenient manner. UPC: 819267021709

• LA-365 Replacement Rechargeable Li-ion Battery

• LA-401 Universal Ear Speaker (Dark Gray)

• Listen Breakaway Lanyard for M1 Interface

• Limited 5-Year Warranty

• Limited 1-Year Warranty

• Shoulder Strap

• Limited 1-Year Warranty

Also Includes

• Limited 5-Year Warranty

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Technical parameters

• LK-1 ListenTALK Transceiver with Lanyard, Ear Speaker, and Battery

  Operating Frequency	1920 to 1930 MHz
  Power	4 mW, average
  Typical Range	Indoor: 328' / 100 m, depending upon condition Outdoor: 656' / 200 m, depending upon conditions
  Modulation	GFSK - FHSS, TDD/TDMA/DCA
  Security	Subscription: 40-bit (pin free) Authentication: 32-bit Encryption: 64-bit

  Impedance	16 to 32 Ohms
  Max Output Power	67 mW, 16 Ohm load (threshold of clipping)
  Features	Side-tone adjustable

  Compatibility	Electret, external bias
  Power	3 V, 2 mA current maximum
  Sensitivity	-28 to -50 dBV/Pa
  Internal Microphone	Switching: Auto detect on jack insertion or manual Maximum Input Level: 109 dB SPL Gain: Adjustable with 30 dB range

  Frequency Response	40 Hz to 15 kHz, ±3 dB, 22 kHz low-pass filter
  Signal to Noise Ratio	70 dB, A-weighted (threshold of clipping)
  Total Harmonic Distortion	0.5% at 1 kHz, 22 kHz low-pass enabled
  Programming	Via software and USB port on unit or via software and USB port on docking station

  Enclosure Material	PC ABS plastic
  Indicators	64 x 128 OLED display, variable brightness Red/white multi-function LED (mute, charge status)
  User Controls	Volume up, volume down, talk, power/status, talk modes, pairing
  Connections	1 x 3.5 mm TRRS headset output, CTIA compliant 1 x micro-USB port for control and charging 1 x 4-contact charger port
  Battery Type	Lithium-ion rechargeable, removable, 1200 mAh 3 x AAA battery compartment (optional)
  Operating Time	Li-ion: 12 hours for participant, 8 hours for leader (typical) AAA: 9 hours for participant, 6 hours for leader (typical)
  Charging Time	2.5 to 3 hours (typical)
  Power Save Mode	Power down on loss of signal Power down on disconnection of headset (1 min) Power down on charging
  Compliance	Pending (FCC part 15, ICS-03, CE, RCM, RoHS, WEEE)
  Temperature	Operational: 14 to 104°F / -10 to 40°C Storage: -4 to 122°F / -20 to 50°C
  Relative Humidity	0 to 95% relative humidity, non-condensing
  Dimensions (H x W x D)	3.9 x 2.1 x 0.9" / 10 x 5.4 x 2.4 cm (with belt clip) 3.9 x 2.1 x 0.6" / 10 x 5.4 x 1.6 cm (without belt clip)

  Box Dimensions (LxWxH)	6.0 x 4.4 x 2.1"

• LA-452 On-Ear Headset with Boom Mic (Single-Ear)

  Construction	Single-eared, on-ear
  Connections	1 x 3.5 mm TRRS, CTIA compliant
  Microphone Element	Electret
  Polar Pattern	Unidirectional, noise-cancelling
  Microphone Impedance	1.5 kOhms, typical
  Sensitivity	-40 dBV / PA at 1 kHz
  Microphone Bias	1.5 to 3 VDC
  Headphone Impedance	140 Ohms
  Frequency Response	200 Hz to 6.8 kHz, headphones 200 Hz to 6.8 kHz, microphone
  Standards	RoHS
  Cable Length	37" / 93 cm
  Weight	2.2 oz / 62.7 g

  Box Dimensions (LxWxH)	6.9 x 1.2 x 1.2"

• Docking Station Case 16

  Color	Case: Gray and chrome Tray: Black, chrome buttons, red leader pocket
  Capacity	16 x units
  Connections	USB Type-B, power
  Standards Compliance	UL, CE, RCM, RoHS
  Power Supply Input	100 to 240 VAC, 50 to 60 Hz
  Power Supply Output	12 VDC, 5.0 A, 60 W
  Power Cord	Input Power Cord Length: 72" / 1829 mm Output Cord Length: 43" / 1093 mm
  Power Supply Connector	Outer/Inner Diameter: 0.2 x 0.1" / 5.5 x 2.3 mm, barrel type
  Dimensions (H x W x D)	7.5 x 13.8 x 18.3" / 190 x 350 x 465 mm
  Weight	11.3 lb / 5.1 kg

  Box Dimensions (LxWxH)	18.9 x 15.2 x 8.5"

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