Portable communication apparatus, namely, personal digital assistants, portable computers, radios, telephone handsets, walkie-talkies, satellite telephones, land line telephones and digital cellular phones; telephones; television receivers; satellite television receivers; satellite navigation system, namely, a global positioning systems (GPS); video cameras; cameras; camcorders; optical lenses; tripods for cameras; shutters for cameras; shutter release for cameras; diaphragms for cameras; camera cases; chargers for electric batteries; batteries; rechargeable electric batteries; chargers for rechargeable electric batteries; solar batteries; cases for mobile telephones; MP3 players; storage batteries; amusement apparatus adapted for use with television receivers only; computers; monitors for computers; thin film transistor-liquid crystal display; plasma display panels; DVD players; CD players; computer workstations comprising computer hardware and computer peripherals; digital multimedia broadcasting receivers; electronic calculators; personal digital assistants; computer programs for image and voice processing; computer mouse; printers for computers; electronic photocopiers; scanners; plotters; facsimile machines; microprocessors; ultrasonic sensors; diodes; semiconductors; silicon wafers; integrated circuits; transistors; print circuit boards; flash memory cards