Electronic product applications include lamps, mobile phone handsets and other fields. PTFE microporous membrane has an excellent waterproof and breathable performance. In lamp applications, it can not only effectively block the ingress of dust and rain, but also maintain the same internal and external pressure. PTFE microporous membrane has excellent properties. The waterproof and sound-permeable performance is suitable for the inside of the handset of the mobile phone to realize the waterproof function of the mobile phone.