What is the difference between an FM System and an Infra-red system?
A. Infrared systems use infrared light to transmit the audio signal. When this light is blocked, the signal cannot be heard. Thus, infrared systems are susceptible to people and objects getting in the way. And, infrared systems do not work in sunlight.FM systems can transmit through objects and operate as effectively in sunlight as they do indoors. FM systems require no installation.