Sound device and sound system

There is provided a sound device used while being worn on the listener's ears.The sound device includes a main body installed on a medial surface of an auricle, a holding portion having an annular hollow structure arranged to be coupled to an intertragic notch of an ear near an entrance of an e...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Shinmen, Naoki, Igarashi, Go, Asada, Kohei
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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