Wired telephones, wireless telephones; portable communications apparatus; mobile phones; MP3 players; television receivers (TV sets); universal serial bus (USB) drive; digital multimedia broadcasting (DMB) players; mobile phone headset; portable charger for mobile phones; computer monitors; notebook computers; computers; digital versatile disc (DVD) players; external hard disk drive for computer; apparatus for recording, transmission and/or reproduction of sound and images; computer application software for mobile phones; digital versatile disc (DVD) players for home theater; speaker for home theater; AV receiver for home theater; projector for home theater; integrated circuit; audio receivers; terminals for electronic toll collection; terminals for electronic transactions installed in vehicles; cameras for closed circuit television (CCTV); cameras for monitoring network system