Oval ePTFE acoustic vent membrane for TWS wireless earphones — Waterproof Sound Permeable Film for TWS Audio © Mimoyin Technology

Membranes for TWS Audio Devices

Our ultra-thin ePTFE acoustic vent membrane is specially engineered for TWS earphones, Bluetooth earbuds and built-in microphones. It solves two core pain points for audio devices: waterproof sweat protection and lossless sound transmission.

Core Product Advantages

Ultra-low acoustic insertion loss ≤1dB, fully restore original sound quality without distortion
IP67 & IP68 sweatproof & waterproof grade, resist daily sweat, rain and splashing water
Ultra-thin lightweight design, fits tiny internal cavity of mini earbuds
Uniform micropore structure, stable acoustic performance in mass production
Custom die-cut oval & small round shapes to match earphone shell structure

Main Application Scenarios

True wireless stereo Bluetooth earbuds
Sports waterproof earphones
In-ear hearing aids
Headset built-in microphones
Portable mini Bluetooth speakers

Matching Product

Acoustic Vent Membrane

Custom size, thickness and adhesive backing are available. Free samples can be delivered within 3–5 working days.

Order Info

MOQ: 1000 pieces
Sample lead time: 3–5 working days
Mass production lead time: 7–15 working days