Control boxes for headphones; covers for headphones; ear pads for headphones; headphone amplifiers; headphone consoles; headphone-microphone combinations; headphones; headphones for audio apparatus; headphones for microphones; plug adaptors for headphones; stereo headphones; stereo headphones for personal entertainment use; stereophonic apparatus incorporating headphones for personal use; stereophonic headphones; two-way plugs for headphones
Electrical and Scientific ApparatusDistribution (other than transportation) of audio recordings; editing of audio-tapes; production of audio and/or video recordings, other than advertising; production of audio entertainment; production of audio recordings, other than advertising; cinematographic film editing; distribution (other than transportation) of films; distribution of motion picture films (rental services); editing of cine-films; film directing, other than advertising films
Education and Entertainment