teleconferencing equipment, namely, automatic microphone mixing and acoustic echo cancelers [ ; remote control equipment for industrial sites, namely, radio and television transmitter facilities; low power radio frequency transmitters and receivers ]

teleconferencing equipment, namely, automatic microphone mixing and acoustic echo cancelers; remote control equipment for industrial sites, namely, radio and television transmitter facilities; low power radio frequency transmitters and receivers

Audio teleconferencing

Audio Teleconferencing