Acoustic couplers; Audio- and video-receivers; Audio interfaces; Audio mixers; Cabinets for loudspeakers; Equalisers being audio apparatus; Headphones; Horns for loudspeakers; Loudspeakers; Megaphones; Microphones; Personal stereos; Portable media players; Recording and playing devices for sound and image carriers; Sound transmitting apparatus; Speaking tubes; Subwoofers; Tape recorders; Virtual reality headsets; Wearable video display monitors

'acoust':1 'apparatus':18,42 'audio':3,8,10,17 'cabinet':12 'carrier':39 'coupler':2 'devic':34 'display':53 'equalis':15 'headphon':19 'headset':50 'horn':20 'imag':38 'interfac':9 'loudspeak':14,22,23 'media':29 'megaphon':24 'microphon':25 'mixer':11 'monitor':54 'person':26 'play':33 'player':30 'portabl':28 'realiti':49 'receiv':7 'record':31,47 'sound':36,40 'speak':43 'stereo':27 'subwoof':45 'tape':46 'transmit':41 'tube':44 'video':6,52 'video-receiv':5 'virtual':48 'wearabl':51

HUIYUJIA

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