Pioneer of waterproof audio equipment for underwater use.

We are a specialized manufacturer of underwater and waterproof acoustic equipment, including underwater speakers. Our products are utilized in a wide range of fields such as artistic swimming, aquariums, marine research, and disaster rescue equipment, and we proudly hold the number one domestic market share for underwater speakers. We have also obtained patents and are recognized as a high-tech company with the "Made in Joetsu" certification. Areas of expertise: Waterproof and underwater acoustic equipment: Manufacturing and sales of underwater speakers, waterproof microphones, underwater amplifiers, underwater cameras, and underwater communication devices. In particular, our all-weather waterproof microphones, capable of withstanding bad weather, are also used for television and radio interviews. Precision processing: We offer contract manufacturing services for precision processing that can withstand depths of 500 meters. Industrial labor-saving devices: We design and manufacture industrial labor-saving devices as well. Acoustics, communications, and ocean engineering: We excel in technology development utilizing acoustics engineering, communications engineering, ceramics, magnetic engineering, and ocean engineering.

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