Electrical apparatus, namely, amplifiers and pre-amplifiers, audio speakers, audio mixers, compact disc players, televisions, video cassette recorders and sound systems comprised of amplifiers, loudspeakers, receivers and tuners; audio consoles and audio interfaces used for recording and mixing sound and adding special sound effects; usb and audio interfaces to record music and audio to a computer; downloadable podcasting software and audio editing software; electrical apparatus for the transmission of audio signals, namely, routers; signal processors for audio speakers; electronic audio effects apparatus, namely, analogue or digital devices that manipulate the way an audio signal sounds; audio mixing console apparatus, namely, audio mixing desks; electricity distribution consoles adapted for mounting units of electronic equipment; headphone consoles; electricity distribution and audio mixing consoles; sound mixing consoles; sound recording consoles; audio interfaces; audio mixers; electronic mixers for mixing signals in the production of audio recordings; microphone mixers; video mixers; sound mixers; sound mixers with integrated amplifiers; acoustic conduits; audio and video mixing desks; microphones; capsule microphones; microphone cases and stands; microphone adapters for video equipment; electroacoustic transducers; acoustic couplers; acoustic coupling devices; acoustic membranes; acoustic meters; acoustic separation units; apparatus for wireless transmission of acoustic information; wave reflectors for acoustic speakers, lighting apparatus, and air flow devices; stereo receivers; stereo tuners; stereo amplifiers; audio equipment components, namely, surround sound systems; sound amplifying receivers; racks for amplifiers; high-fidelity stereo systems comprised of amplifiers, loudspeakers, receivers and tuners; Car audio speakers; loudspeaker cabinets; horns for loudspeakers; racks for loudspeakers; audio speakers; electric actuators; apparatus for mounting loudspeakers on floor stands and table tops, namely, vibration damping fittings and feet; subwoofers; signal separating, distributing, generating and converting electronic circuits all for audio signals, video signals or audio-video signals; audio and video receivers; audio and video electric cables and connectors; power cables and connectors; portable telephones; wireless audio systems comprised of wireless microphones, wireless receivers, wireless transmitters, spectrum analyzers, wireless access point (wap) devices, ethernet switches, antenna distribution systems, antennas, microphone switches, audio cables, batteries, battery packs, and battery chargers; microphones with enhanced radio frequency interference shielding capabilities; wired microphones; microphone transducers; microphone cables; audio processors for the recording, transmission, amplification, reproduction, and processing of sound; audio transmitter units; audio and video transmitter receivers; audio network interfaces; controls for audio receivers; preamplifiers; electronic switchers for audio signals; transformers; audio conferencing consoles; digital signal processors; digital switching apparatus for use with audio devices; earphones; earphone sleeves; earphone cases; headphones; headphones for microphones; headsets for use with music players; headsets for use with telephones; headset sleeves; audio attenuators; cases for headphones; personal headphones for use with wireless sound transmitting systems; headsets for digital or electronic tablets; wireless headsets for mobile phones; wireless headsets for smart phones; downloadable computer software for digital signal processing; downloadable computer software for audio signal processing ; downloadable computer software for digital feedback reduction; downloadable computer software for monitoring and controlling wireless audio systems; downloadable computer software for use with microphones, headphones, loud speakers; audio apparatus, namely, audio consoles and audio interfaces used for recording and mixing sound and adding special sound effects; audio equalizers; audio feedback reducers; weights, microphone weights and counterbalance weights for concealing wires attached to lavalier microphones under clothing; downloadable computer and video game software; computer apparatus adapted for use with television receivers or other external display screens or monitors, namely, computer display screens or monitors