Audio products and parts therefor, namely, speakers, dynamic handset receivers that convert electronic signals into sound, electric buzzers, piezo buzzers containing a piezoelectric ceramic element, electro-magnetic transducers that convert magnetic energy into sound, and microphones

'audio':1 'buzzer':18,20 'ceram':24 'contain':21 'convert':12,31 'dynam':8 'electr':17 'electro':27 'electro-magnet':26 'electron':13 'element':25 'energi':33 'handset':9 'magnet':28,32 'microphon':37 'name':6 'part':4 'piezo':19 'piezoelectr':23 'product':2 'receiv':10 'signal':14 'sound':16,35 'speaker':7 'therefor':5 'transduc':29

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