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A Listen Tour Group System consists of a Portable Display FM Transmitter and Portable FM Receivers. Currently tour group products are available in 72 MHz, 216 MHz for use in North America, in 863 MHz for use in Europe and in 150 MHz for use in Australia.

A microphone is required to connect to the transmitter as the audio source to broadcast the presenter’s voice to everyone in the audience or group. The portable transmitter allows the audio to be delivered without having to carry a microphone or be plugged into the wall.

Participants wear a portable FM receiver with an earphone to hear the presentation. An unlimited number of receivers can be used with one transmitter as long as the participants are within the broadcast range.

Transmission range varies by frequency. For 72 MHz, 216 MHz and 150 MHz the transmission range is typically up to 150 ft. (45.7 m); for 863 MHz the transmission range is 250 ft. (76.2 m).


The transmitter and the receivers must be tuned to the same channel and depending on the frequency, 3 – 8 channels can be used simultaneously. This allows for multiple tours to be conducted at a time and/or provide language interpretation.

Transmitters and receivers offer a mix of features and functionality for channel selection, programming, power, signal strength, and use. Portable transmitters and receivers are typically battery powered with standard alkaline or NiMH batteries.

Tour Group Systems are excellent for factory tours, trade show presentations, campus tours, museums, outdoor events, classrooms or training sessions, or personal use. Anywhere you need to amplify sound but don’t have (or want) an installed sound system.


Three separate ListenTALK receivers in a row with different group names on each display screen.
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