Electronic components in the nature of capacitors, connectors, filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers, transistors; USB charging ports; Amplitude modulation tuners; 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; El...