Intelligence radiation protection pipe earphone

The utility model discloses an intelligence radiation protection pipe earphone, including phone jack connector, intelligence switch switch, metal head speaker, air conduit and waterproof earplug, phone jack connector connects gradually intelligence switch switch and metal head speaker through the wi...

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Bibliographische Detailangaben
1. Verfasser:	CHEN ZHENKANG
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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