Electronic memories; smartglasses; memory modules; earphones; megaphones; microphones; horns for loudspeakers; headphones; virtual reality headsets; personal headphones for sound transmitting apparatuses; mp3 players; wireless speakers; batteries; chargers for batteries; battery chargers; lithium ion batteries; spectacles; bone conduction earphones; stereo headphones; noise cancelling headphones; wireless headphones; earbuds.