Radio Frequency Range Overview

The Radio Frequency (RF) range of products is a wireless assistive listening system and ADA compliant hearing accessibility solution. RF systems use wireless radio waves to transmit sound to portable receivers.
This product range includes stationary as well as portable transmitters. Stationary transmitters are used in large public venues, while portable transmitters enable tour or group guidance in educational and historical sites and museums.

RF frequencies can be transmitted through walls, ceilings or other barriers and can work effectively outdoors. The system operates on the 915MHz frequency.

Product Sheet


  • Trade Compliance Act (TAA) Compliant
  • Federal Acquisition Regulation (FAR) 52.225-5 Trade Agreement Compliance
  • Americans with Disabilities Act (ADA) Compliant – United States


This wireless assistive listening system can be used in venues such as:

  • Conferences
  • Lecture Halls, Schools and Universities
  • Performing Arts Centers
  • Places of Worship
  • Meeting Rooms
  • Outdoor Tours
  • Museums
  • Auditoriums
  • Interpretation Services

Transmitters and Accessories


Stationary Transmitter


Portable Transmitter


Portable Handheld Transmitter


Lapel Microphone for use with the RF-TX1-915


Ear-worn microphone for use with the RF-TX1-915 Portable Transmitter


Antenna kit for the RF-TXRM Stationary Transmitter when installed in a rack mount

Receiver and Accessories


Portable Receiver


Neck Loop


Stereo Headphones for use with the RF-RX1-915 Portable Receiver

Charging Systems


24 Bay Charging Case for use with the RF-TX1 Portable Transmitter and RF-RX1 Portable Receiver. The case has a built in digital panel and PC software to program multiple devices, including data copy and channel sync.

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