Battery chargers; Capacitors; Carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, cell phones, MP3 players, personal digital assistants; Connection cables; Control units for regulating start-up electrical motors; Electric circuit switches; Electric relays; Electric resistors; Electrical plugs and sockets; Electrical and electronic connectors; Electronic components in the nature of capacitors, connectors, filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers, transistors; Integrated circuit modules; Laboratory equipment and supplies, namely, test tubes; Optical breadboards; Oscillators; Portable photography equipment, namely, reflectors, tripods, light stands and supports and bags specially adapted for these goods; Power supply connectors and adaptors for use with portable electronic devices; Rectifier modules; Testing equipment for measuring the temperature, pressure, position or form of workpieces in a machine tool; Tool measuring instruments