Wireless communication systems comprised of communication headsets, microphones, base stations, belt packs specially adapted for holding or carrying wired or wireless transmitters and wired or wireless receivers for use with point-of-sale terminals, headphones, audio speakers, and audio receivers, primarily for use in conjunction with drive-thrus and restaurants

'adapt':14 'audio':37,40 'base':9 'belt':11 'carri':18 'communic':2,6 'compris':4 'conjunct':46 'drive':49 'drive-thrus':48 'headphon':36 'headset':7 'hold':16 'microphon':8 'pack':12 'point':32 'point-of-sal':31 'primarili':42 'receiv':27,41 'restaur':52 'sale':34 'speaker':38 'special':13 'station':10 'system':3 'termin':35 'thrus':50 'transmitt':22 'use':29,44 'wire':19,24 'wireless':1,21,26

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