Miniature loudspeaker

The utility model discloses a miniature loudspeaker, comprising a housing and a sound production unit, the housing comprises an upper housing and a lower housing which are combined in a covering manner, an annular retaining wall is arranged in the lower housing, a bearing step is arranged in a cavit...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LUO HUANYING, LIN JIAPING
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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