Microphones, parts and accessories for microphones; vibration sensors; sensors [measurement apparatus], other than for medical use; loudspeakers; semi-conductor devices; semi-conductors; sound collector; electroacoustic transducers; sound amplifiers; amplifiers; amplifiers for microphones; headsets; microphone stands and parts thereof; extension cords; electric plugs; plug adapters; windscreen for microphones; booms for microphones; parts and accessories for microphones; telephone apparatus a...

Microphones, structural parts for microphones and accessories for microphones in the nature of cables, cases, grilles, power boxes, holders and conversion adaptors therefor; vibration sensors; sensors for detecting allophonic sound, other than for medical use; loudspeakers; sound collector in the nature of electroacoustic transformation device; electroacoustic transducers; sound amplifiers; amplifiers; amplifiers for microphones; headsets; microphone stands and structural parts thereof; exten...