Public-address systems consisting of audio amplifiers, audio mixers, audio speakers, audio receivers, audio transmitters, audio equalizers, and microphones, used as a peripheral device to and in conjunction with electronic whiteboards, for use by educational institutions in classrooms

Public-address systems consisting of audio amplifiers, audio mixers, audio speakers, audio receivers, audio transmitters, audio equalizers, and microphones, used as a peripheral device to and in conjunction with electronic whiteboards, for use by educational institutions in classrooms

Audio Equipment including accessories, wire, connectors, adapters, adapter cables, and pro and consumer audio equipment