Earphone and loudspeaker

The utility model relates to an earphone and a loudspeaker. The earphone comprises a wall body, the loudspeaker and a cavity cover. The wall body is provided with an output port. The loudspeaker is accommodated in the wall body, and the sounding end of the loudspeaker is provided with a sound outlet...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZHOU BUQING
Format:	Patent
Sprache:	chi ; 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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