Listen Technologies LKR-11-A0 ListenTALK Receiver Pro

The LKR-11 ListenTALK Receiver Pro (SKU: LKR-11-A0) is part of Listen Technologies ListenTALK portable wireless collaboration system designed for group communications in a variety of applications including Training and Collaboration, Assistive Listening, Guided Tour Groups, Language Interpretation and Translation, Event Production and Sports Intercom. ListenTALK systems are simple to purchase and configure and they are highly versatile.

The LKR-11 is a one-way device designed for those participants that only need to listen to ListenTALK group conversations. The LKR -11 is equipped with Listen Technologies’ ergonomic design, near field communications, encryption technology for added security, easy to use volume control and quick visible status via the OLED display. ListenTALK Receiver Pro is the simplest option for one-way communication among groups of two or more people in any environment. In addition to the included Listen Ear Speaker, ListenTALK can be used with standard smartphone earbuds or Listen Technologies headphones.

For reliability and security, instead of using the overcrowded 2.4 GHz frequency, ListenTALK operates on the 1.9 GHz band in full duplex and utilizes frequency hopping and spread spectrum technology to increase reliability and reduce interference. Headset styles are available for use in quiet or noisy environments.

Listen understands that your security matters, so each ListenTALK is equipped with a multilayer security protocol consisting of a 40-bit (pin free) group subscription, 32-bit authentication and a 64-bit encryption scheme assuring secure conversations.

Includes

• One (1) LKR-11 ListenTALK Receiver Pro
• One (1) LA-365 Rechargeable Li-ion Battery
• One (1) LA-401 Universal Ear Speaker
• One (1) LA-445-BK Breakaway Lanyard

Features

• Fast and simple one-way communication
• Simple up and down volume control
• Encryption technology for added security
• Compatible with standard earbuds and Listen Technologies headphones
• Long-lasting lithium-ion rechargeable batteries
• Optional Alkaline Battery Compartment

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: 2.79 oz. (79 g)
  • Shipping Weight: 7.20 oz (206 g) with 1.0 lbs (454 g) 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, Power/Status
  • Programming: Via software and USB port on unit or via software and USB port on Docking Station
• Connections:
  • Headset- 3.5mm TRRS, CTIA complaint
  • USB- Micro USB, Control and Charging
  • Charger- 4 Contact, Control and Charging
• Audio:
  • Headphone Output:
  • Speaker Load- 16 - 32 ohm load
  • Max Output Power- 67 mW, 16 ohm load, Threshold of Clipping
• 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
  • Typical Range: Indoor 328.1 ft (100 m), Outdoor 656.2 ft (200 m), depending upon conditions - North America
• 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
  • Typical Operating Time:
    • Li-ion - 12 Hours
    • AAA – 7 Hours
  • Typical Charge time: 4 Hours
• Power Save Modes:
  • Power down on loss of signal
  • Power down on disconnection of headphone (1 min)
  • Power down on charging
• Environmental:
  • Temperature:
    • Operation: 14° F (-10° C) to +104° F (40° C)
    • Storage: -4° F (-20° C) to +122° F (50 °C)
  • Relative Humidity: 0 to 95% relative humidity, non-condensing
• Compliance:
  • Standards: FCC part 15, ICS-03, CE, RCM, RoHS, WEEE