District Administration - February 2008 - (Page 45)
Audio drop-off in a classroom occurs without a microphone, and it increases dramatically toward the back. With OWI’s CRS Infrared Wireless System, students in the back of the class can hear just as well as those sitting up front.
http://www.owi-inc.comhttp://www.owi-inc.com
Table of Contents for the Digital Edition of District Administration - February 2008