Apparatus for recording, transmission or reproduction of sound or images; audio equipment consists of stereo audio speakers, built-in wireless communication receivers and docks for use with portable electronic apparatus, namely, electronic book readers, tablet computers, MP3 players, MP4 players, mobile phones, and smart phones; computer application software for portable electronic apparatus to install and control audio equipments aforementioned; blank Universal Serial Bus (USB) flash memory drives; camcorders; computer game software; computer network hubs, switches and routers; computer software for instant messaging, sending and receiving emails and contact information, schedule sharing and contents sharing service; computer software for managing and organizing various digital reading contents, namely, e-books, e-newspapers, thesis, and e-magazines; computer software for personal information management; computer software for purchasing, downloading, playing or listening to music; computer software for purchasing, subscribing, downloading, playing or listening to digital reading contents, namely, e-books, e-newspapers, thesis and e-magazines and electronic games; computer software for use in recording, organizing, transmitting, manipulating, and reviewing text, data, audio files, video files and electronic games in connection with TV, computers, music players, video players, media players and mobile phones; computer application software for use in voice recognition; computer software for use with satellite and Global Positioning System (GPS) navigation systems for navigation, route and trip planning, and electronic mapping; computer software for travel information systems for the provision or rendering of travel advice and for information concerning hotels, landmarks, museums, public transportation, restaurants and other information regarding travel and transport; computer software suggesting the most suitable pen-input applications for the mobile device; computer software to be used for viewing and downloading electronic maps; computer software embedded on portable phones and/or portable computers that allows users to play and download electronic games, listen to and download ring tones and music, and view and download screen savers and wallpapers; computer software to edit daily activities, address book, calendar, memos, and multimedia contents stored in mobile devices; computer software to enable authoring, posting, uploading, downloading, transmitting, receiving, editing, extracting, encoding, decoding, playing, storing, organizing, showing, displaying, tagging, blogging, sharing or otherwise providing electronic media or information over the Internet or other communications network; computer software to enable users to program and distribute audio, video, text and other multimedia content, namely, music, concerts, videos, radio, television, news, sports, games, cultural events, and entertainment-related and educational programs via communication network; computer software to receive, transport, encode, decode, decrypt, encrypt, transmit, multiplex, de-multiplex, and manipulate video and other data in digital format to deliver television and other video programming to appropriate video devices for distribution of television programming for viewing on television sets; computers; digital albums in the nature of digital photo viewers; digital cameras; digital photo frames; digital set-top boxes; downloadable digital images, namely, photographic or video images in the field of education and entertainment; downloadable ring tones for mobile phones and tablet computers; DVD players; electronic whiteboards; facsimile machines; hard disk drives; intercom key terminals for connection to a telephone network; Internet Protocol (IP) Phones; Internet protocol (IP) private branch exchange switchboards; key phone operating system software; key phone switch boards; Local Area Network (LAN) Switches; mobile phone and tablet computer accessories, namely, batteries, electric battery chargers, data communication cables, wired headsets, wireless headsets, ear phones, car chargers, leather cases for mobile phones and tablet computers and notebook computers, hands free kits adapted for use with mobile phones and tablet computers, flip case covers adapted for mobile phone and tablet computer, stylus, phone holders, screen protective films, phone straps, faceplates of plastic or silicon adapted for use in encasing; replacement front panels for mobile phones and portable computers; audio decks adapted for use with mobile phone and tablet computer; holders adapted for mobile phones; mobile phone operating system software; mobile telephones; monitors (computer hardware); MP3 players; network access server hardware; network access server operating software; PDA (Personal Digital Assistants); portable computers; portable multimedia player; printers for computers; semiconductors (chips); smart phones; software for network management system; stylus for portable electronic devices; tablet computer operating system software; tablet computers; telephones; telephones used as terminal devices for Internet protocol (IP) private branch exchange (PBX); television receivers; three-dimensional (3D) eyeglasses; wide area network (WAN) routers