Audio equipment, namely, television sets, radio receiving sets, radios for automobiles, amplifiers, loudspeakers, loudspeakers with build-in amplifiers, disc players, electronic carriers of stored signals and remote control units for regulation of sound signals for noise reduction, and for tone and sound control in relation to sound playback, and for tone and sound control in relation to music playback in cars; audio equipment, namely, television sets, radio receiving sets, radios for automob...