9 Folding and/or height adjustable rigid stands for supporting loudspeaker casings; microphone stands, amplifier stands, connectors, cable assemblies; connector cables for computerised music, cables for guitars and instruments, spiral (jack) cables for instruments, pedal cables, microphone cables, digital audio/video cables and fittings, optical cables, connector cables for "non-amplified" speakers, connector cables for "amplified" diffusers, adapter cables, supply cables (power cords) speakers, metronomes, foot switches