Audio equipment coated with ultra-hydrophobic coatings, namely, loudspeakers; intercoms; sirens; horns for loudspeakers; emergency and mass communication systems comprised of two-way telephone systems and intercoms; compression drivers; acoustic sold as a component of loudspeakers; electric signal attenuators; power supplies; loudspeaker cabinets; speaker grilles and frames; wall-mounted electric volume controls for audio systems; sound-masking speakers; microphone and studio boom stands; rac...