The sound is audible, while only the noise is cut out! With an IP54 equivalent dustproof and waterproof design, it is resistant to rain and dust.
The "MM4000" is a digital earplug that can cut out only environmental sounds. You can still hear necessary sounds even while noise canceling, so you can feel at ease. Additionally, it is possible to listen to surrounding sounds while wearing the earplugs in external sound capture mode. When using noise canceling in "strong" mode, it can be continuously used for about 85 hours with one AA alkaline battery. 【Features】 ■ Waterproof and dustproof ■ Battery-operated ■ External sound capture *For more details, please refer to the related links or feel free to contact us.
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basic information
【Mechanism for Cancelling Environmental Noise】 ■ A small microphone built into the earphones captures surrounding environmental noise. ■ The main unit's noise-cancelling circuit generates sound with an opposite phase (inverted). ■ The combination of the two waveforms cancels out the noise at the ear. *For more details, please refer to the related links or feel free to contact us.
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Applications/Examples of results
[Usage Scenarios] ■ During work in a factory ■ While studying ■ During travel on a train ■ While working in an office *For more details, please refer to the related links or feel free to contact us.
Company information
Since our founding in 1927, we have developed numerous innovative filing products with the theme of "people and information utilization." Among them, our flagship product, the "King File," created a culture of filing in Japanese offices. Additionally, in 1988, we developed the label maker "Tepra" from the idea of creating title displays for files. Since its launch, it has been utilized not only for file title displays but also in various fields, and it has now become the second pillar of King Jim. In this way, both the "King File" and "Tepra" have pioneered their respective genres and opened up new markets. "To develop innovative products and contribute to society through the creation of new cultures." Under this management philosophy, we believe that by creating innovative products, we can provide our customers with new cultures, habits, and solutions to problems, thereby contributing to society. We continue to pursue product development with high aspirations to carve out a new era.
