Earphones and headphones; Wireless headsets for smartphones; Electronic products for the manipulation of the frequency, time, and amplitude characteris; Audio electronic components, namely, surround sound systems; Acoustic conduits; Hands free devices for mobile-phones; Microphones for telecommunication apparatus; Portable media players; Sound amplifiers; Loudspeakers

'acoust':27 'amplifi':44 'amplitud':18 'apparatus':39 'audio':20 'characteri':19 'compon':22 'conduit':28 'devic':31 'earphon':1 'electron':8,21 'free':30 'frequenc':15 'hand':29 'headphon':3 'headset':5 'loudspeak':45 'manipul':12 'media':41 'microphon':36 'mobil':34 'mobile-phon':33 'name':23 'phone':35 'player':42 'portabl':40 'product':9 'smartphon':7 'sound':25,43 'surround':24 'system':26 'telecommun':38 'time':16 'wireless':4

TRUEOPEN

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