Batteries; Headphones; Megaphones; Microphones; Spectacles; Battery chargers; Bone conduction earphones; Downloadable computer application software for mobile telephones and personal computers, namely, software for users to optimize and personalize electronic devices, customize electronic devices, set up call control with softphones, manage wireless electronic devices, update electronic devices to enhance performance and features, get an overview of connected electronic devices and charging status, and give feedback on electronic devices; Downloadable computer software for controlling the operation of audio and video devices; Downloadable software in the nature of a mobile application for users to optimize and personalize electronic devices, customize electronic devices, set up call control with softphones, manage wireless electronic devices, update electronic devices to enhance performance and features, get an overview of connected electronic devices and charging status, and give feedback on electronic devices; Earphones for cellular telephones; Electronic memories; Eyeglass lenses; Horns for loudspeakers; Memory modules; MP3 players; Optical lens blanks; Personal headphones for sound transmitting apparatuses; Smart glasses; Spectacle lens blanks; Sunglass lenses; Virtual reality headsets; Wireless speakers; Chargers for batteries; Lithium ion batteries