INTEGRUS

Electronic conference and communication systems, comprising control apparatus, namely, on/off switches, and controls for volume, balance, and adjustment for treble/bass; audio/video receivers and audio/video signal and simultaneously interpretation transmitters, amplifiers, voting units, namely congress delegate and/or chairman unit for parliamentary, multiple choice audience response voting; parts and fittings therefor, in particular microphones, headphones, loudspeakers, power supplies, plugs and sockets, modems and cables; Public-address systems consisting of microphones, loudspeakers, amplifiers, electric cables and audio/sound playback apparatus