Combined wireless audio transmitter, receiver, microphone and speaker units for classroom use; electronic media connector comprising an audio transceiver for receiving audio inputs from sources including computers, DVD players, phones, and audio visual equipment and for transmitting such received audio signals; speaker amplifiers; microphones; audio transceivers; batteries; charging stations for microphones and for combined speaker microphone units; wireless combined speaker and microphone units for two-way audio communication

'amplifi':43 'audio':3,18,22,32,40,45,68 'batteri':47 'charg':48 'classroom':11 'combin':1,54,59 'communic':69 'compris':16 'comput':27 'connector':15 'dvd':28 'electron':13 'equip':34 'includ':26 'input':23 'media':14 'microphon':6,44,51,56,62 'phone':30 'player':29 'receiv':5,21,39 'signal':41 'sourc':25 'speaker':8,42,55,60 'station':49 'transceiv':19,46 'transmit':37 'transmitt':4 'two':66 'two-way':65 'unit':9,57,63 'use':12 'visual':33 'way':67 'wireless':2,58

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