Data processing apparatus; computer peripheral devices; headsets for use with telephones and computers; cables, electric; battery chargers; headphones; microphones; cabinets for loudspeakers; audio-receivers and video-receivers; sound transmitting apparatus

Computer chips; Computer memories; Computer memory hardware; Electronic components for computers; Electronic memories; Memories for data processing equipment; Memories for use with computers

Data processing apparatus; computer peripheral devices; headsets for use with telephones and computers; cables, electric; battery chargers; headphones; microphones; cabinets for loudspeakers; audio-receivers and video-receivers; sound transmitting apparatus

Headphones; Microphones; Computer peripheral devices; Earphones; Sound transmitting apparatus