The ListenTALK LKR-12 receiver offers clear audio with a rechargeable lithium-ion battery, compact design, and advanced wireless technology for professional assistive listening applications.
The Listen Technologies ListenTALK LKR-12 Basic Receiver (model LKR-12-A0) is designed for reliable assistive listening in professional settings such as presentations and panel discussions. Operating within the 1920 to 1930 MHz frequency range for North America, it utilizes GFSK modulation combined with FHSS, TDD/TDMA/DCA technologies to ensure stable wireless communication. This receiver features a headphone output impedance of 16 to 32 Ohms and delivers a maximum output power of 67 mW at a 16-Ohm load.
Its frequency response spans from 40 Hz to 15 kHz with a ±3 dB variance, providing clear and natural sound reproduction. The device maintains a signal-to-noise ratio of 70 dBA and total harmonic distortion of just 0.5% at 1 kHz with the low-pass filter enabled. Powered by a removable 1200 mAh rechargeable lithium-ion battery, the unit offers up to 12 hours of operation and charges fully in approximately 4 hours. An optional AAA battery pack can extend usage to about 7 hours.
The receiver incorporates power-saving features that automatically shut down the device when the signal is lost, headphones are disconnected, or during charging. Constructed from durable PC ABS plastic, the compact receiver measures 3.93 x 2.13 x 0.93 inches with the belt clip attached and weighs just 2.79 ounces. User controls include volume adjustment and power/status buttons, while connectivity options feature a CTIA-compliant 3.5 mm TRRS headset jack and micro-USB port for charging and control.
It meets multiple regulatory standards including FCC Part 15, CE, and RoHS.
- Operates on 1920 to 1930 MHz frequency band (North America)
- Headphone output impedance: 16 to 32 Ohms with 67 mW max output
- Frequency response: 40 Hz to 15 kHz ±3 dB with 22 kHz low-pass filter
- Signal-to-noise ratio of 70 dBA and 0.5% total harmonic distortion at 1 kHz
- Removable 1200 mAh rechargeable lithium-ion battery with 12-hour runtime
- Optional AAA battery pack provides approximately 7 hours of use
- Power-saving auto shutdown on signal loss, headphone disconnect, or charging
- Compact design: 3.93 x 2.13 x 0.93 inches, weighs 2.79 oz, PC ABS plastic housing
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