What is the difference between FM/DM, Loop, and Infrared assistive listening systems?

FM/DM, Loop, and Infrared systems all support access for people who are hard of hearing, but they differ in how they transmit sound. FM/DM systems use radio signals and are portable, making them good for classrooms and on-the-go settings. Loop systems transmit sound through a magnetic field and work best in fixed locations like auditoriums, while Infrared systems use light signals and are ideal for secure environments since the signal can’t pass through walls. Use comparison tools like NDC’s Assistive Listening Systems 101 to explore what works best for your setting.