Audio Enhancement says it designs its classroom-based sound amplification systems with the idea that if students can hear, they will learn more effectively. With a new necklace-like microphone smaller than the palms of their hands, teachers can speak clearly and be heard around the classroom, the company says. This microphone reportedly works well with several different sets of speakers, receivers, and amplifiers.

Califone International, a developer and manufacturer of audio-visual and supplemental curriculum products, joined the American Speech-Language-Hearing Association (ASHA) in announcing a collaborative nationwide effort to encourage the safe use


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