Listen Technologies LKS-1 Base 4 System with 4 Transceivers, 1 Headset and 4-Port USB Charger

Starter System for 2-Way Communication

For 1 Team Leader and 3 Team Members

4 x LK-1 Transceivers with Leader Clips

1 x LA-452 Headset

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

Designed to facilitate two-way communications for four people, the LKS-1 Base-4 System from Listen Technologies bundles together six useful pieces of gear into one useful starter system. Included are four LK-1 Transceivers (with leader clips), one LA-452 headset, and one four-port USB charger for powering the units when they're not in use.

With this system, you'll have everything you need to enable communications between one team leader and up to three team members at any one time. This system is expandable, should you need to add more elements to it.

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

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 Listen Technologies 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 Listen Technologies 4-Port USB Wall Charger

The 4-Port USB Wall Charger from LISTEN Technologies turns your wall outlet into a charging station, keeping your LISTEN iDSP products ready to go. It is a suitable accessory for personal use of iDSP products or for smaller venues. The charger's compact design makes it easy to store and does not block extra outlets on the wall. This charger is compatible with LISTEN iDSP receivers and supports input voltages of 100 to 240 VAC, 50 to 60 Hz. This model features four USB ports, and a small LED on the front of the charger illuminates when the charger is plugged into a live power socket. It comes with four USB-to-micro-USB cables.

UPC: 819267021495

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)

Package Weight	0.475 lb
Box Dimensions (LxWxH)	6.05 x 4.4 x 2.05"

Earpiece Design	On-Ear (Supra-Aural)
Number of Earpieces	Single Earpiece
Impedance	140 Ohms

Frequency Response	200 Hz to 6.8 kHz
Sensitivity	-40 dBV/Pa at 1 kHz

Type	Electret Condenser
Pickup Pattern	Cardioid (Unidirectional)
Frequency Response	200 Hz to 6.8 kHz
Operating Voltage	1.5 to 3 V
Impedance	1.5 Kilohms

Audio Connector to Source	1 x 1/8" / 3.5 mm TRRS
Cable Length	37" / 93 cm

Certifications

RoHS, as per Manufacturer

Weight

2.2 oz / 62.7 g

Package Weight	0.16 lb
Box Dimensions (LxWxH)	7.45 x 5.6 x 3.15"

Power Input	100 to 240 VAC, 50 to 60 Hz, 0.18 A
Power Output	5.0 VDC, 4.2 A
Cable Length	2.44 x 2.90 x 1.13" (62 x 74 x 29 mm) Cable Length: 36" (92 cm)
Certificates	UL, FCC, RoHS
Weight	7.80 oz (221 g)

Package Weight	0.55 lb
Box Dimensions (LxWxH)	5.2 x 4.5 x 1.2"

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