ORATIS

intercom systems, acoustic couplers, electronic indicator boards, computer operating system programs, computer software for controlling intercom systems, electronic notice boards, audio receivers, video receivers, remote control apparatus for television and radios, high frequency transmitters for audio and control data, computer interface boards, voltage regulators, loudspeakers, microphones, television and computer monitors, video recorders, automatic switchboards, distribution consoles, sound level meters, amplifiers and converters, electronic tone generators, audio playback devices for digitized samples, mixing consoles, namely, sound mixers