Microphones; Bone conduction earphones; Earphones and headphones; Intelligent personal assistant devices comprised of voice-activated speakers, computer hardware, and recorded software for searching the internet for weather and traffic information, appointment reminders; Loudspeakers, headphones, microphones and CD players; Noise cancelling headphones; Remote controls for radios, televisions, stereos; Soundbar speakers; Virtual reality headsets; Wearable computers in the nature of smartglasse...