WIRELESS COMMUNICATION APPARATUS FOR UNDERWATER WORKING AND ITS COACHING

The present invention relates to a communication device for underwater activities and supervision thereof. The communication device for underwater activities and supervision thereof according to the present invention allows a coach in the outside of water to instruct a swimmer in the water based on...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LEE, JAE WOO, KIM, JEONG HEE, PARK, YIN SOO, LEE, YEON WOO, KIM, BUM MU, SHIM, DONG KI, YOON, SEOK HO, LEE, SEONG RO
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 TRANSMISSION
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