2 2-way unit earphone modules

The present invention relates to a two-way unit earphone module, which comprises a lower casing, a base output unit, an upper casing, a middle and high-pitched sound output unit, a middle and high-pitched sound output unit protecting tube, a base output unit support member, and a cable. According to...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	CHAE, SUNG SOO
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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