Audio speakers; Batteries; Circuit boards; Electrical wires; Electronic components in the nature of capacitors, connectors, relays, switches, transformers, resistors, integrated circuits, transistors, inductors, diodes and vacuum tubes; Electronic components in the nature of connectors and electric connectors, electronic and electric circuits; kits consisting wholly or principally of the aforesaid goods.; Light emitting diodes (LEDs); Microphones; Power supplies; Electric or electronic sensor...