Most people use classroom systems to help students understand speech more easily.
As a result numerous students have documented greatly improved student attention, comprehension, and test scores. In addition, because teachers can speak in a normal voice, they have also been shown to benefit from a significant reduction in vocal fatigue. A small, FM-based classroom system with a wireless microphone worn by the teacher, the Easy Listener sound field system is extremely popular in North American schools for improving academic performance, lessening behavioral referrals, and reducing vocal fatigue in general education classrooms. Like our Easy Listener sound field system, the two-channel VocaLight system increases test scores and class participation while decreasing behavioral referrals and teacher vocal fatigue. VocaLight differs in that it uses infrared technology to broadcast the teacher's voice.