Ultracapacitors for energy storage; Rheometers for measuring the viscosity and viscoelasticity of fluids; Electronic digital signboards; Dog whistles; Marine depth finders; Home automation hubs comprised of voice-activated speakers, computer hardware, and recorded software for controlling networked devices in the internet of things (IoT), operating internet-enabled and connected lighting apparatus and home security alarms; Wireless communication device featuring voice, data and image transmission including voice, text and picture messaging, a video and still image camera, also functional to purchase music, games, video and software applications over the air for downloading to the device; Virtual reality headsets adapted for use in playing video games; Radio sets; Consumer electronic products, namely, audio amplifiers, audio speakers, audio receivers, electrical audio and speaker cables and connectors, audio decoders, video decoders, speakers, power conversion devices, power converters, and power inverters; Control valves for regulating the flow of gases and liquids; Fingerprint padlocks; Time switches, automatic; Electronic components in the nature of capacitors, connectors, filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers, transistors; Electronic measuring device that displays a manual wheelchair user's propulsion activity, namely, number of pushes, distance traveled, speed, and cadence