We provide a clear audio experience for everyone in the venue with infrared listening assistance.
ListenIR is an infrared hearing assistance system that uses proprietary technology from Listen Technologies, called iDSP (Intelligent Digital Signal Processing). This digital sound processor provides clear sound by transmitting audio directly to the listener via infrared without amplifying surrounding noise. It offers an affordable and user-friendly listening assist solution, recommended for both fixed installations and portable use at events. When used within a facility, infrared does not penetrate walls, allowing for discreet usage. 【Transmitter Features】 ● Coverage area of up to 2,787 m² ● Expandable coverage area with up to 4 additional radiators ● Transmits 2-channel audio on four frequencies: 2.3MHz, 2.8MHz, 3.3MHz, and 3.8MHz 【Receiver Features】 ● Nearly 360-degree reception range ● Neck loop and strap with DSP loop driver compatible with T-coil hearing aids ● OLED display showing channel, battery, volume, and other information at a glance
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basic information
【Transceiver Features】 ● Coverage area of up to 2,787m² ● Expandable coverage area with up to 4 extension radiators ● One-cable design that transmits both power and signal to the LA-141 extension radiator using a single CAT-5e cable ● Transmits 2-channel audio on four frequencies: 2.3MHz, 2.8MHz, 3.3MHz, and 3.8MHz 【Receiver Features】 ● Nearly 360-degree reception range ● Rechargeable battery for extended use ● Neck loop and strap equipped with a DSP loop driver, compatible with T-coil hearing aids ● OLED display for easy visibility of channel, battery level, volume, and other information *For more details, please contact us or view the catalog immediately via "PDF Download." You can also view the product page from the URL below.
Price range
Delivery Time
Applications/Examples of results
Theater, halls, corporate conference rooms, and government agencies.
Line up（4）
| Model number | overview |
|---|---|
| LT-84 | Listen IR 2CH Transmitter/Radiator Combo |
| LA-141 | Dedicated expansion radiator for LT-84 (Transmitter/Radiator Combo) |
| LR-4200-IR | DSP infrared receiver. Supports single-channel reception. |
| LR-5200-IR | DSP infrared receiver. Supports multi-channel reception. |
catalog（1）
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Company information
Matsuda Trading Co., Ltd. fully utilizes its capabilities as a group of specialists in the music, broadcasting, and telecommunications fields that it has been engaged in so far, developing and providing products and services that are truly sought after by everyone in this era of diversified values, in collaboration with manufacturers both domestically and internationally. Please feel free to contact us. <Examples of Products Handled> 【Broadcast Systems】Intercom systems, counter intercoms, audio/IP codecs, caster earphones, etc. 【Video Systems】Routers/converters, servers/VTR controllers, legalizers, HDMI splitters, etc. 【Audio Systems】Speakers, audio processors, monitors, smoke machines. 【Conference Systems】Digital wireless/wired conference systems, simultaneous interpretation systems, infrared assist systems, camera control systems, video distributors, etc.