• A radio frequency unit can sit anywhere, fitting discreetly underneath clothing.

  • A radio frequency hearing loop technology system provides the same security as the infrared option, with much more flexibility, the same level of security and a more streamlined setup process.

  • Highly portable – ideal for tour groups.

  • Easy to install/low installation cost.

  • Can cover large seating areas.

  •  Several channels available for multiple systems installed in adjacent rooms as well as for language translation and audio description for the blind.

  • Suitable for indoors and outdoors.

  • Require Receivers for everyone.

  • Both headphones and neck-loops must be available at public facilities as coupling options.

  • No privacy as signal travels through solid surfaces.  However, Encrypted digitally-modulated (DM) systems are available for use where privacy is a priority. In addition, some of the digitally modulated systems provide two-way communication for question/answer sessions and interpreting needs.

  • Facility owners need to maintain, clean, dispense and collect receivers and keep receiver batteries charged.

  • Radio interference from other services is possible.

  • For listeners who wish to use an FM receiver equipped with a neck-loop along with his or her hearing aid/cochlear implant T-Coil, the T-Coil may pick up electromagnetic interference if it is present in the room. Care should be taken to reduce/eliminate spurious electromagnetic interference in the room prior to the installation of an FM system.