[ Cinematographic machines and apparatus; ] Photographic apparatus and instruments, namely, flash units; Self-timers for cameras; Camera shutters; Shutter releases for cameras; [ Audio and video receivers; Portable media players; Electric audio and visual apparatus and instruments, namely, lenses for cameras, lens filters and flash units for cameras; ] Video transmission apparatus; Phototelegraphy apparatus; Intercommunication apparatus, namely, electronic devices for locating and tracking lo...