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 output. Using high-quality conductor materials and metal contacts, the PJ-302 effectively reduces noise and distortion to provide clear, authentic audio performance, enabling users to enjoy a better music experience. 7. Stability and durability. The interface part of PJ-302 is made of metal material, which has high oxidation resistance and stability. At the same time, the structure is simple, no vulnerable parts, so that it has higher durability and stability. 8. Light and easy to use. PJ-302 is small in size, light in weight, easy to plug and remove, very convenient to use a variety of headphones and audio equipment, is a very practical accessory. 9. Use it widely. PJ-302 is suitable for all devices that can accept 3.5mm audio input. It is widely used in mobile phones, computers, flat screen TVS, MP3s, notepad computers, desktop computers and other digital devices to meet the various needs of consumers. 10. Diversified interface selection. PJ-302 provides a variety of different interface forms, such as wire plug, plate, isolation and other interfaces, which is convenient for users to choose and use according to actual needs.Video and audio products, notebook, tablet, communication products, household appliances Mobile phone stereo design, earphone,CD player, wireless phone, MP3 player, DVD, digital products The PJ-302 Headphone socket is compatible with many different audio devices, such as mobile phones, laptops, tablets, audio players, and more. As long as your device has a headphone jack, you can easily connect to the PJ-302 headphone socket. Is a highly compatible, high-performance, portable and durable audio interface, very suitable for use in travel, sports, office and other occasions