Circuit overload protector devices; Communication hubs; Electric cables, wires, conductors and connection fittings therefor; Electrical voice intracommunications systems comprising control stations, interface modules, frames, controller cards, connectors, power supplies, panels and mountings for use in the production of live musical performances, theatre, and other live events; Electronic equipment, namely, transformers, baluns, and cables, all used in connection with computers, computer peripheral devices, televisions, audio-video equipment, closed-circuit TV equipment and telecommunication equipment; Electronic and optical communications instruments and components, namely, communication link testers for testing communication links; Fiber optic connectors; Optical fiber cables; Patch panels for housing electrical connectors, electrical switches; Portable telecommunication instant messaging devices; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Telecommunications and data networking hardware, namely, devices for transporting and aggregating voice, data, and video communications across multiple network infrastructures and communications protocols; Virtual reality glasses