Baoxin adhesive Breathable Waterproof IP68 Protective Adhesive Vent E-PTFE Porous Filter Membrance for buzzer can help in waterproof and resisting particles and corrosion while equalizing the pressure between internal and external the sealed enclosure. Also, They can maintain sound quality and protect sensitive electronics which widely used in speaker/buzzer /Receiver/ Microphone/ headset and other Portable electronic devices. They are ePTFE membrane , which are :
1.Acoustic /sound transmission
2.Waterproof
3. air permeable
4.Chemically inert
5.Temperature/UV resistant
6. Particle blocking 7. salt spray resistant
