Mic Vent: 3ATM | Portable Electronic: Wearable Device

IPRO Home Application Portable Electronics VentsSmart Wearable Device Mic Vent 3ATM


The proportion of smart wearable products, such as smart bracelets, watches and TWS earphones has gradually increased. Diversified application scenarios have given rise to a strong demand for waterproof smart wearable products. With natural hydrophobic properties thanks to its multi-fluorine molecular structure, IPRO mic vent is mainly made of ePTFE and installed at the pressure relief hole of the microphones and speakers of wearable products to enable perfect communications under water.

Technical Data

    • Material: ePTFE
    • Sound Loss: <3dB
    • IP Rating: 3ATM (30m, immersion for 30min)
    • Installation Method: Adhesive
    • Operation Temperature: -40℃-+105℃
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Product Application : 3ATM


With the popularity of intelligent wearable products, traditional wearable products (such as mechanical watches, etc.) are gradually being replaced. Smart wearables have also derived from single-function bracelets into a variety of products, including smart sports watch, children’s watch, TWS headphones, and health monitoring watch for the elderly, etc.


Wearable products are used daily and widely, thus are inevitably exposed to hand sanitizers, sweats, rainwater, and other liquids. Therefore, being waterproof and resistant to corrosive liquids becomes vital for wearable products. Today, waterproofness has become a standard function of wearable products. Health monitoring watches, children’s watches and sports watches are often used during swimming and diving. Diving-grade waterproof capabilities has gradually become a potential necessity for intelligent wearable products.


Generally, smart wearable products are interconnected with mobile phones to realize communication functions and receive phone calls and information, so highly sensitive acoustic devices such as microphones and speakers must be integrated into the wearables. In order to achieve smooth sound transmission, sound holes need to be created for wearables. The pressure of 30 meters underwater reaches 300kPa, and ordinary elastic materials cannot withstand such pressure, thus how to be waterproof but also ensures sound transmission has become a technical difficulty for wearable products.

With natural hydrophobic properties, high strength and vibration capabilities, the ePTFE mic vent provides wearable products with waterproof protection, which can stand water depth of 30m for 30 min without breaking, as well as maintain perfect sound transmission.

In addition, thanks to excellent ductility of the material and IPRO’s exquisite filming technology, the loss of sound transmission is reduced to less than 3dB, realized close to zero loss of sound quality.


With the dual protection of waterproofness and tone transmission, consumers will no longer worry about the damage of smart phones due to water exposure during swimming or diving.

Key Features
  • Pure natural hydrophobicity, with long service life;
  • Low sound loss, good ductility, and strong recovery;
  • Chemical inertness, resistant to splashes of sweat, soapy water, coffee, and other liquids;
  • Dust-proof Rating: Up to Level 6, preventing dust from entering the machine and damaging the components inside;
  • Operation Temperature: -40℃-+105℃.

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