TOA

electric wires and cables; wireless microphone systems consisting of microphone, wireless transmitters, wireless receivers and antennas; wireless receivers; wireless transmitters; microphones; public address systems; amplifiers; audio signal processors; audio mixers; control panels for public address system; loudspeakers; associated components for loudspeaker, namely, diaphragms, horns and drivers; megaphones; intercom systems consisting of intercom exchanges, intercom stations; audio signal transmission and reception devices; intercom exchanges; intercom stations; conference systems consisting of audio signal transmission and reception devices; voice evacuation systems consisting of microphones, speakers, amplifiers, audio signal transmission, reception devices, audio recording, playback devices and central control device for voice evacuation systems [ ; surveillance television systems consisting of video signal interfaces, surveillance television cameras, video recorders, controllers for video monitoring equipment and installation brackets for surveillance television camera; video signal interfaces; surveillance television cameras; video recorders ]