loud speakers, tweeters, and woofers; sirens; electric switches; namely, toggle, shunt, and contact switches; transducers; speakers; attenuators; siren boxes with premounted speakers; siren drivers; audio sound wave indicators; compression drivers; electromagnetic buzzers and ceramic piezobuzzers; and alligator clip test leads

'allig':37 'attenu':17 'audio':25 'box':19 'buzzer':32 'ceram':34 'clip':38 'compress':29 'contact':13 'driver':24,30 'electr':7 'electromagnet':31 'indic':28 'lead':40 'loud':1 'name':9 'piezobuzz':35 'premount':21 'shunt':11 'siren':6,18,23 'sound':26 'speaker':2,16,22 'switch':8,14 'test':39 'toggl':10 'transduc':15 'tweeter':3 'wave':27 'woofer':5

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