APPARATUS

A device according to an embodiment of the present specification comprises: a vibration member; and a vibration device configured to vibrate the vibration member, wherein the vibration device is configured with a first vibration part and a second vibration part different from that of the first vibra...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SEUNGHYUN SUNG, YONGWOO LEE
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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