Computers; Computer peripheral devices; Pocket calculators; Weighing apparatus and instruments; Measures; Light-emitting electronic pointers; Cabinets for loudspeakers; Monitoring apparatus, other than for medical purposes; Monitoring installations (electric); Monitoring instruments (electric); Microphones; Headphones; Stands for photographic apparatus; Tripods for cameras; Cases especially made for photographic apparatus and instruments; Material for electricity mains (wires, cables); Light emitting diodes (LED); Plugs, sockets and other contacts (electric connections); Alarms; Spectacles; Chargers for electric batteries; Batteries, electric