audio and visual conferencing equipment, namely, audio transmitters and receivers, [ cordless headphones, ]microphones and their associated base stations, audio speakers, conferencing bridges and audio and video trackers used to monitor movement of personal microphones and conference participants

audio and visual conferencing equipment, namely, audio transmitters and receivers, cordless headphones, microphones and their associated base stations, audio speakers, conferencing bridges and audio and video trackers used to monitor movement of personal microphones and conference participants

audio and visual conferencing equipment, namely, wireless audio transmitters and receivers, cordless headphones, microphones and their associated base stations, audio speakers, conferencing bridges and audio and video trackers used to monitor movement of personal microphones and conference participants