Vocal activity monitor, namely an ambulatory phonation monitor

Electronic vocal activity monitor for medical use, namely, an ambulatory phonation monitor used to log the vocal activity of an individual

chemicals, namely, processed collagen for implantation in, injection into, and surface application to the human body

sound amplifying systems comprised of sound amplifiers, sound mixers, speakers and parts therefore; audio teaching systems comprised of sound amplifiers, sound mixers, speakers and parts therefore; wireless group amplification systems comprised of sound amplifiers, sound mixers, speakers; active learning systems comprised of sound amplifiers, sound mixers, speakers; feedback cancellation devices, amplifiers, radio transmitters and speakers