Apparatus for wireless transmission of acoustic information, including wireless indoor and outdoor speakers, amplifiers for wireless communication; loudspeakers with built-in amplifiers; amplifiers for sound signals; [ audio earphones and ] headphones, including attached cable; stands specially adapted for stereos and audio speakers [ ; loudspeaker and audio signal cables; motor systems comprising hard magnetic materials and soft magnetic materials for loudspeaker drive units; computer software applications and software for sound reproduction ]

'acoust':6 'adapt':37 'amplifi':14,23,24 'apparatus':1 'applic':64 'attach':33 'audio':28,41,45 'built':21 'built-in':20 'cabl':34,47 'communic':17 'compris':50 'comput':62 'drive':60 'earphon':29 'hard':51 'headphon':31 'includ':8,32 'indoor':10 'inform':7 'loudspeak':18,43,59 'magnet':52,56 'materi':53,57 'motor':48 'outdoor':12 'reproduct':69 'signal':27,46 'soft':55 'softwar':63,66 'sound':26,68 'speaker':13,42 'special':36 'stand':35 'stereo':39 'system':49 'transmiss':4 'unit':61 'wireless':3,9,16

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