EARPIECE AND EARPHONE HAVING SOUND FILTER

The present invention relates to an earpiece including a sound filter and an earphone. In the earpiece which is combined with one end of an earphone body and is closely inserted into the inner wall of an external auditory canal of a wearer, a connection hole is installed in the earpiece to penetrate...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LEE, DAE CHUL
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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