[caption id="attachment_40622" align="alignleft" width="150" caption="Crestron’s FreeSpeech wireless microphone system has a feature designed to save instructors from potential embarrassment."][/caption]

Innovative new speakers, public address systems, and sound amplification systems that make it easy to set up and control the audio in classrooms and other locations were among the many audio-visual products highlighted at InfoComm 2011 in Orlando last month.

For instance, Outline North America demonstrated its Mini COM.P.A.S.S. line of portable speakers. COM.P.A.S.S. stands for “Compact Polar Adjustable Sound System,” and these speakers are stackable, networkable, and fully adjustable. Each...

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