video cameras; electronic switchers for video signals; video and audio/visual systems and components, namely, audio microphone mixers, and camera-and-microphone systems that capture, transmit, or record video and audio during meetings or presentations; video and audio/visual system controllers, namely, controllers that power on/off for, that select audio/video sources for, or that indirectly operate audio/video equipment, namely, video cameras, electronic switchers camera-and-microphone syste...