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. Wide applicability: PJ-320A headphone socket is suitable for most mobile phones, tablets, computers, MP3 and other digital devices as well as car audio, small audio equipment. 7. Good stability: PJ-320A headphone socket is made of metal and plastic materials, and has been precision designed and manufactured to ensure good stability and reliability. 8. Easy installation: PJ-320A headphone socket is small in size and easy to install. Usually, you only need to remove the device shell and fix the socket. 9. Good audio transmission effect: PJ-320A headphone socket has excellent audio transmission effect, which can transfer audio signals to headphones or speakers, and supports audio formats such as stereo 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 Digital devices: PJ-320A headphone socket is suitable for most mobile phones, tablets, computers, MP3 and other digital devices. Users can transfer audio signals to headphones or speakers through this jack to enjoy 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-320A headphone jack, allowing drivers and passengers to enjoy better music and radio experiences. Music production: PJ-320A headphone socket is a common audio interface, which is widely used in music production. By connecting electronic instruments, mixing tables, audio interfaces and other devices, audio signals can be transmitted to headphones or speakers to help production personnel better feel the music effect, so as to achieve better production effects.