Downloadable computer software applications for controlling the operation of audio and video electronics; downloadable computer software applications for controlling and improving audio quality of sound equipment; downloadable computer operating system software; computer peripheral devices; notebook computers; tablet computers; desktop computers; magnetic encoded identification bracelets, data processing apparatus; pedometers; photocopiers; bathroom scales; digital signs; cell phones; wearable activity trackers; smartphones; telephone headsets; wireless bluetooth earphones; earbuds; noise cancelling earphones; virtual reality headsets; cabinets for loudspeakers; earphone; camcorders; television apparatus; cameras; measuring instruments for sound, length and pressure; teaching robots; stereoscopes; electrical wires and cables; semiconductors; power adapters; electric switches; electric batteries; battery chargers; video screens; remote control apparatus; heat regulating apparatus; electrolysers; fire extinguishing apparatus; radiological apparatus for industrial purposes; protection devices for personal use against accidents; electric theft prevention installations; eyeglasses; animated cartoons; sports whistles; decorative magnets; electrified fences; headphones; ear pads for headphones; earpieces for remote communication