1. With 5.1 channel and audio high fidelity different structural design 2. Small and light appearance, good electrical conductivity, high safety and stability 3. DIP and SMT are available for installation 4. Contact terminal adopts elastic structure design to ensure good, stable contact and service life 5. Can design different functional connection products according to customer requirements 6. High quality audio. Using high-quality materials and metal contacts, the PJ-304 effectively reduces noise and distortion, resulting in a clear, authentic sound quality experience. Users can enjoy a better music and voice calling experience. 7. Durable and stable. The interface part of PJ-304 is made of metal and has a special design for high durability and stability. No matter frequent plugging, or long time use, can maintain excellent performance. 8. Compact and portable. The PJ-304 is compact and very portable. Users can take it with them to enjoy audio services anytime and anywhere. At the same time, it is suitable for all kinds of places, such as travel, work, study and so on. 9. Multiple interfaces. The PJ-304 provides a variety of interfaces, such as wire panel interface and isolation interface, so that users can choose according to actual requirements. Users can choose the interface that is most suitable for their device to achieve the best connection effect. 10. Use it widely. PJ-304 is suitable for all kinds of digital products, such as mobile phones, computers, MP3s and so on. Almost all devices can be connected to external devices such as headphones through the PJ-304, allowing users to enjoy high-quality audio services.Video and audio products, notebook, tablet, communication products, household appliances Mobile phone stereo design, earphone,CD player, wireless phone, MP3 player, DVD, digital products PJ-304 is a popular headphone socket product, which is often used in mobile phones, computers, MP3s and other digital products. Overall, the PJ-304 headphone socket is a high-quality, durable, stable, compact and portable product that is an important tool for connecting digital and external devices. If you need a good headphone socket, the PJ-304 will be your choice.