Waterproof horn structure and management and control early warning robot

The utility model discloses a waterproof horn structure and a management and control early warning robot, the structure comprises an accommodating part, the accommodating part comprises a cavity box type structure enclosed by a plurality of plate-shaped members; the loudspeaker cover plate is connec...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI CONGFAN, LI JIEYING, SHAO HAOXIAN, XIE YANTENG, KUANG YUNTAO
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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