9 Silicon and structured semi-conductor wafers, mask, namely, photolithography mask, circuit board, semiconductor, integrated circuit, electronic circuit, printed circuit board, semiconductor wafer, semiconductor device, very large scale integration circuits, silicon wafer, large scale integration circuits, power management integrated circuit, power devices, namely, electronic power devices in the nature of multimedia outlets, taps, electronic circuit board, hybrid circuit board, loudspeaker, sound box, namely, speaker box, computer loudspeaker, stereo set stereo set consisting of a pair of speakers