retail store services and mail order retail services in the field of radio and sound reproduction equipment, namely, stereo systems, speakers, phonographs, amplifiers, tuners, public address amplifiers, electronic keyboards, entertainment lighting, microphones, wireless microphones, headphones, mixers, blank audio and video tape, compact discs, stereo cartridges and stylus; equalizers, compact disc players, radios, receivers, rack systems; electrical and electronic devices, namely, alternate current and direct current power adapters, connectors, fuses, integrated circuits, multitesters, power supplies, switches, test equipment and wire and cable; computer hardware, furniture, software and peripherals for schools, home, science and business usage; antennas, namely, television, auto, citizens band and satellite; laser vision players; satellite receivers, feedhorns, low-noise blocks and low-noise amplifiers for satellites; antenna mounting hardware; television/video switching distribution equipment; audio/video signal processors; cellular telephones; telephones and telephone accessories; pagers; home security systems; auto security systems; scanners; calculators; hand tools; batteries; battery chargers; electronic and radio-controlled toys; video cassette recorders; video camera recorders; office equipment, namely, facsimile machines, pencil sharpeners, and copiers; remote control systems, remote control switches; intercoms; televisions; radar detectors; automobile compact disc players; amateur radio transceivers and accessories, marine radio transceivers and accessories; citizens band radios, transceivers and receivers; flashlights; databanks; owner and/or operating manuals and books; testing equipment; vacuum tubes; and metal detectors