Exact prices change frequently, which is why only approximate ranges are listed.
$ - Under $5
$$ - Between $6 and $50
$$$ - Between $51 and $250
$$$$ - Over $250
Anderson, K. L., & Goldstein, H. (2004). Speech benefits of FM and infrared devices to children with hearing aids in a typical classroom. Language, Speech, and Hearing Services in Schools, 35, 169-184.
Glaaser, D. J. (2008). The effects of improved classroom acoustics on the educational performance of students with attention-deficit/hyperactivity disorder. ProQuest LLC.
Palmer, C. V. (1998). Quantification of the ecobehavioral impact of a soundfield loudspeaker system in elementary classrooms. Journal of Speech, Language, and Hearing Research, 41, 819-833.
Schafer, E. C., & Thibodeau, L. M. (2004). Speech recognition abilities of adults using cochlear implants with FM systems. Journal of the American Academy of Audiology, 15, 678-691.
Zanin, J., & Rance, G. (2016). Functional hearing in the classroom: assistive listening devices for students with hearing impairment in a mainstream school setting. International Journal of Audiology, 55, 723-729.
Written by Bronwyn Lamond, Last Revision January 2017