Electric battery chargers; Battery chargers; Rechargeable batteries; Power supply devices for battery chargers; Microphones; Electronically encoded identity wristbands; Video cameras; Code reading modules; Video surveillance cameras; Audio and video receivers; Linked computer networks; Electrical connection adapters; Sound recording apparatus; Burglar alarm apparatus (other than for vehicles); Connecting devices for data transfer; Electric navigation instruments; Analogue to digital converters; DVD players; Electronic cameras; Portable field chargers