With the progress of science and technology, the update of scientific and technological products is faster and faster. In order to maintain the market competitiveness of products, intelligent product manufacturers have made great efforts in performance and new functions. For example, electronic communication equipment pays more attention to waterproof requirements. The waterproof and sound permeable membrane of telephone watch is a good choice.

Now people's life has been closely related to electronic products. If you look carefully, you will find that there are many small holes, which mainly play the role of sound and pressure relief. It can let the air flow freely in the loudspeaker, prevent pressure accumulation and cause changes in sound quality. The waterproof of pressure relief hole is now integrated into the waterproof sound permeable membrane of telephone watch to improve its protective effect, make the sound quality clearer and the bass effect is not affected.

The special structure of PTFE waterproof breathable membrane makes it have good thermal stability, chemical stability, insulation, lubricity, water resistance and so on. High temperature resistance, wide temperature range, can be used continuously at 260 ℃ (high temperature for a long time, and the instantaneous temperature can reach 280 ℃; strong chemical stability and corrosion resistance; good self lubrication, extremely low friction coefficient and low filtration wear; PTFE membrane has low surface tension, good invisibility and water repellency.

At present, the waterproof sound permeable membrane of telephone watch independently developed by UNM is suitable for earphones, mobile phones and telephone watches to realize ipx67 protection. UNM is a manufacturer specialized in research, development, production and sales of waterproof and sound permeable membrane for telephone watches. The company is different from other manufacturers. Our company can according to the requirements of users. The optimized combination of key technical parameters such as speed ratio, pressure ratio and operating temperature can realize the online regulation of air permeability, thickness and porosity according to the ratio and pore forming medium, so as to meet the different requirements you need. Interested parties can enter UNM store for consultation.