Headphones, audio speakers, planar magnetic transducers that convert electrical signals into sound waves, aluminum headphone frames, polymer headphone frames, amplifiers, digital to analog converters, audio cables, carrying cases specially adapted for headphones, boxes specially adapted for housing audio equipment

'adapt':30,35 'aluminum':14 'amplifi':20 'analog':23 'audio':2,25,38 'box':33 'cabl':26 'carri':27 'case':28 'convert':8,24 'digit':21 'electr':9 'equip':39 'frame':16,19 'headphon':1,15,18,32 'hous':37 'magnet':5 'planar':4 'polym':17 'signal':10 'sound':12 'speaker':3 'special':29,34 'transduc':6 'wave':13

AB1266

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