Monitors (computer hardware); Electronic notice boards; Light-emitting electronic pointers; Intercommunication apparatus; Navigational instruments; Video telephones; Cabinets for loudspeakers; Monitoring apparatus, electric; Audio and video receivers; Sound transmitting apparatus; Television apparatus; Surveying instruments; Teaching apparatus; Cables, electric; Wires, electric; Copper wire, insulated; Amplifiers; Commutators; Connectors (electricity); Converters, electric; Switches, electric; Plugs, sockets and other contacts (electric connections); Reducers (electricity); Fluorescent screens; Control panels (electricity); Connections for electric lines; Inverters (electricity); Remote control apparatus connected by modems to computers; Integrated circuits; Semi-conductors; Light dimmers (regulators) (electric); Light emitting diodes (LED); Step-up transformers; Electric apparatus for commutation; Protection devices for personal use against accidents; Locks, electric; Electric door bells; Chargers for electric batteries; Batteries, electric; Solar batteries