Smart glasses; wearable computers; wearable smart phones; wearable displays; wearable monitors; smart bracelets; smart rings; smart watches; wearable computer peripherals; wearable computer hardware; wearable activity trackers; wearable telecommunication apparatus; wearable communications apparatus; wearable computer peripheral devices; wearable video display monitors; wearable digital electronic communication devices; smart phones in the form of eyewear; wearable communications devices in the form of wristwatches; downloadable mobile applications for use with wearable computer devices; computer application software for use with wearable computer devices; wearable digital electronic devices capable of providing access to the internet; protective helmets; drivers' helmets; sports helmets; helmets for motorcyclists; helmets for bicycles; helmet communications systems; smart helmets; audio amplifiers; headphones; noise cancelling apparatus; musical instrument amplifiers; software to control and improve audio equipment sound quality; assistive listening devices for amplifying, filtering, and refining musical sounds; earphones; computer software; consumer electronics, namely, computers, or smartphones