9 Computer hardware; communications hardware, namely, sound-enhancing and audio-enhancing microphones, headphones, and earbuds, System on a Chip (SoC) for enhancing audio in microphones, headphones, and earbuds; telecommunications hardware, namely, sound-enhancing and audio-enhancing microphones, headphones, and earbuds, System on a Chip (SoC) for enhancing audio in microphones, headphones, and earbuds; consumer electronic devices, namely, sound-enhancing and audio-enhancing microphones, headphones, and earbuds; electronic devices for processing, modification, transmission, reception and modulation of sounds and audio content, namely, sound-enhancing and audio-enhancing microphones, headphones and earbuds, System on a Chip (SoC) for enhancing audio in microphones, headphones and earbuds; downloadable computer software for processing, modification, transmission, reception and modulation of sounds and audio content; downloadable computer software for use in sound-enhancing and audio-enhancing microphones, headphones and earbuds, System on a Chip (SoC) for enhancing audio in microphones, headphones and earbuds; downloadable computer software for the administration and interpretation of hearing tests, and for storing hearing test results