Wearable computers in the nature of smartglasses; Downloadable computer software for recording, storing, transmitting, receiving, displaying and analyzing data from wearable electronic hardware; Wearable computers in the nature of smartglasses and downloadable software for indoor and outdoor navigation and landmark recognition; Downloadable virtual, augmented, and mixed reality software for use in mobile devices for integrating electronic data with real world environments for the purpose of interacting with virtual, augmented or mixed reality environments and content in the field of education, entertainment, art, games, music, performances, sports, communication, general interest, and business; Virtual, augmented, and mixed reality headsets; Wearable computers in the nature of smartglasses and downloadable software for use in enabling computers, handheld consoles, tablet computers, mobile devices, and mobile phones to provide augmented or mixed reality world experiences; Wearable computers in the nature of smartglasses and downloadable software for recording and other digital recording media, namely, audio recorders and video recorders; Downloadable computer software programs for transmitting, receiving, downloading, sharing, displaying, and interacting with audiovisual content, documents, files and data in the field of business and entertainment; Wearable computers in the nature of smartglasses and comprised mainly of software and display screens in connection with computers, tablet computers, mobile devices, and mobile phones to enable virtual, augmented, or mixed reality world experiences; virtual reality glasses, namely, goggles for enabling virtual, augmented, or mixed reality world experiences; Head-mounted video displays, namely, 2-dimensional and 3-dimensional head-mounted video displays; Computer hardware for human-computer interface, namely, headsets, remote control units, and wearable peripherals for connecting with computers and portable computers; Downloadable computer software for human-computer interaction with and transferring and receiving audio-visual content, documents, files, and data in the field of business and entertainment; Viewing devices, namely, digital photograph viewers, 3D digital photograph viewers, underwater digital photograph viewers, underwater 3D digital photographs viewers, underwater LCD displays, underwater enclosures for LCD displays and underwater enclosures for video players and downloadable video display software; Optical devices, namely, near-eye display optics and optical receivers; Downloadable virtual, augmented, and mixed reality game software