Transmitter/receiver teaching apparatus

摘要: A teaching apparatus including a transmitter portion, receiver portion and prompter each of the portions being disposed in separate self-contained unit, adapted to be worn on head peripheral band top connecting extending an arcuate path between opposing sides band, microphone under side intermediate ends thereof for contact with head, antenna associated citizen's mechanism located power supply member connected member, voice activatible actuating member; transducer inside message producing member.