Headphones; sound amplifiers; wireless headphones; [ electronic neckbands in the nature of earphones featuring a neckrest; ] ear buds; wireless ear buds; earphones [ ; sound mixers with integrated amplifiers; and software for operating hearing aids and sound amplification devices; remote controls for hearing aids; batteries for use in hearing aids ]

'aid':32,41,47 'amplif':35 'amplifi':3,26 'batteri':42 'bud':17,20 'control':38 'devic':36 'ear':16,19 'earphon':12,21 'electron':6 'featur':13 'headphon':1,5 'hear':31,40,46 'integr':25 'mixer':23 'natur':10 'neckband':7 'neckrest':15 'oper':30 'remot':37 'softwar':28 'sound':2,22,34 'use':44 'wireless':4,18

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