You can hear the sound while cutting out only the noise! It has an IP54 equivalent dust and water resistance specification, making it strong against 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 secure. Additionally, it is possible to listen to surrounding sounds while wearing the earplugs in external sound capture mode. When using noise canceling on "strong," 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.
Inquire About This Product
basic information
【Mechanism for Cancelling Environmental Noise】 ■ A small microphone built into the earphones captures surrounding environmental noise. ■ The noise-cancelling circuit in the main unit generates sound with an inverse phase (inverted). ■ By combining the two waveforms, the noise is cancelled out at the ear. *For more details, please refer to the related links or feel free to contact us.
Price range
Delivery Time
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.
catalog（2）
Download All Catalogs![[Part 1] 2025 King Jim Comprehensive Catalog Vol. 54](https://image.mono.ipros.com/public/catalog/image/01/e22/796099/IPROS13509770614001217696.jpeg?w=120&h=170)
![[Part 2] 2025 King Jim Comprehensive Catalog Vol. 54](https://image.mono.ipros.com/public/catalog/image/01/e28/796100/IPROS5864139545238955380.jpeg?w=120&h=170)
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 used 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 by creating new cultures." Under this management philosophy, we believe that by creating innovative products, we can contribute to society by providing our customers with new cultures, habits, and solutions to problems. We continue to pursue product development with high aspirations to carve out a new era.
![Ear-hook type twist cord earphones [EME-684M]](https://image.mono.ipros.com/public/product/image/b94/2000426123/IPROS325989291067989630.jpg?w=280&h=280)
