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. Good stability: PJ-320B headphone socket is made of metal and plastic material, which has been designed and manufactured accurately to ensure good stability and reliability. 7. Easy installation: PJ-320B headphone socket is small in size and easy to install. Usually, you only need to remove the device shell and fix the socket to use it. 8. Good audio transmission effect: PJ-320B headphone socket has excellent audio transmission effect, which can transmit audio signals to headphones or speakers, and supports audio formats such as stereo sound and surround sound.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-320B headphone jack is suitable for most mobile phones, tablets, computers and digital devices such as MP3s. Users can use this jack to transfer audio signals to headphones or speakers for a better music experience. Car audio: Many cars are equipped with audio systems, including CD players or radios, which can be upgraded to higher quality devices through the PJ-320B headphone jack, allowing drivers and passengers to enjoy better music and radio experiences. Gaming and video entertainment systems: The PJ-320B headphone socket is also widely used in gaming and video entertainment systems. Users can connect the jack to devices such as game consoles, televisions or computers to hear more realistic sound effects through headphones or speakers, improving the enjoyment experience of games and movie entertainment.