HearingLoop.org, a website dedicated to educating consumers and businesses about the loop technology, notes that equipment ranges in size, from small portable and commercial window-counter installations to systems for home TV rooms, and larger-area systems.
Portable receiving units, akin to those for infrared and FM systems, can be purchased for those without telecoil-equipped aids.
According to the website, some installations, such as those for older wooden structures, may be easier to install and therefore be cost-saving. But for optimal performance in institutional settings, the site recommends the following: “Professional installation (and design, if needed) is highly recommended. Metal in the floor, walls, and ceilings, for example, may necessitate special system design and extra amplification. Adjacent rooms may require systems designed to prevent spillover of sound from one room to the next.” The technology’s wires are typically installed not at ear level but rather either below the listener, such as under a carpet edge, a baseboard, or a floor, or above the listener.
The cost of hearing loop technologies range from $2,000 to $8,000 for small- to medium-sized worship centers, but more for very large facilities.