Cabinets for loudspeakers; Camcorders; Converters for electric plugs; Data processing equipment, namely, couplers; Depth gauges; Distance measuring apparatus; Electrical pickups for use with musical instruments; Electronic sound pickup for guitars and basses; Gasometers; Headphones; Integrated circuit cards and components; Interfaces for computers; Loudspeakers; Megaphones; Microcomputers; Microcontrollers; Microphones; Portable media players; Pressure measuring apparatus; Repeaters for radio...