Product picture - TeachLogic IRS-8655 Spectrum III Infrared Wireless Classroom Microphone System with Sapphire Microphone Transmitter & 4 Ceiling-Mount Speakers TeachLogic, IRS-8655, Spectrum, III, Infrared, Wireless, Classroom, Microphone, System, with, Sapphire, Microphone, Transmitter, &, 4, Ceiling-Mount, Speakers Click the image to close this page