Access control and alarm monitoring systems; Apparatus for recording, transmission or reproduction of sound and images; Audio equipment for vehicles, namely, stereos, speakers, amplifiers, equalizers, crossovers and speaker housings; Audio transmitter units; Automatic electrical switches; Automotive, industrial, construction, locomotive, aviation, navigation and marine safety-warning lights, namely, strobes, rotating lights and bar lights; Cable junctions for electric cables; Cases for electronic key fobs being remote control apparatus; Computer hardware with preinstalled software for analyzing speed and temperature measurements and remotely controlling lighting devices within a building; Continuity test apparatus for electrical circuits; Converters for electric plugs; Digital imaging apparatus comprised of semiconductor-controlled micromirrors; Electrical plug device enabling connection and disconnection of power and/or control cables; 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; Smart home hubs using artificial intelligence (AI) comprised of voice-activated speakers, computer hardware, and downloadable software for controlling networked devices in the internet of things (IoT), operating internet-enabled and connected lighting apparatus and home security alarms, etc