The following PDFs contain instructions for use of IS&T-provided microphones in each classroom. 1-190 2-105 2-131 2-142 2-190 3-270 3-333 3-370 4-163 4-231 4-237 4-270 4-370 6-120 9-354 10-250 26-100 26-152 32-082 32-123 32-141 32-155 35-225 37-212 54-100 56-114 E25-111 E25-117