42 MAIL ORDER AND RETAIL STORE SALES OF HOME RECORDING STUDIO PACKAGES, NAMELY, AUDIO UNITS TO PLAY PRE-RECORDED TAPES AND RECORDS, STEREO AMPLIFIERS, STEREO SPEAKERS, AUDIO-CASSETTE RECORDERS, AUDIO-CASSETTE PLAYER UNITS, EIGHT-TRACK CARTRIDGE PLAYER UNITS, PHONOGRAPHS, PRE-RECORDED CASSETTE TAPES, PRE-RECORDED EIGHT-TRACK CARTRIDGE TAPES, AND MICROPHONES