Binoculars; Monoculars; Telescopes; Gun scopes; Laser rangefinders; Night vision goggles; Optical glasses; Optical or telescopic lens sights; Rifle scopes; Telescopic lens sights; Telescopic sights; Telescopic sights for firearms

Acoustic membranes; Cabinets for loudspeakers; Earphones and headphones; Horns for loudspeakers; Loudspeakers; Portable media players; Sound amplifiers; Sound reproduction apparatus; Virtual reality headsets; Woofers

Educational services, namely, providing online courses, workshops, and training in the fields of clinical research, regulatory compliance, and business management