Mimoyin waterproof sound-permeable membrane is manufactured from ultra-thin expanded PTFE material, specially customized for audio electronic devices that require both waterproof protection and undistorted sound transmission.
Its uniform microporous structure effectively blocks sweat, rain, dust and water splashes, reaching IP67 & IP68 waterproof grade. Meanwhile, the acoustic insertion loss is controlled within 1dB across full frequency band, which retains original clear sound without muffling for speakers and microphones.
Core Advantages
Ultra-low sound loss ≤1dB, restore high-fidelity audio output
Excellent sweat & waterproof performance, fit sports wearables
Super thin lightweight design, adapt to mini earphone cavities
Stable batch acoustic performance, consistent micropore distribution
Custom oval, round die-cut shapes with adhesive backing
Main Applications
TWS Bluetooth earbuds, smart watches, hearing aids, car microphones, portable walkie-talkies
Technical Parameters
Parameter
Spec
Material
Ultra-thin ePTFE
Waterproof Grade
IP67 / IP68
Acoustic Loss
≤ 1dB
Operating Temp
-40℃ ~ +120℃
Thickness
0.08–0.25mm
Order Info
MOQ:1000pcs | Sample lead time:3–5 days | Mass production:7–15 days
