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3.5mm Gold-Plated Headphone Jack Featuring a standard 3.5mm interface, this headphone jack offers wide compatibility for headphones, audio equipment, and various electronic devices. The contact area is finished with gold plating, which helps improve conductivity, reduce contact resistance, and minimize signal loss for a more stable and clearer audio connection. In addition, the gold-plated surface provides better oxidation and corrosion resistance, enhancing durability and extending the insertion life of the jack. It is ideal for applications that require reliable connectivity and consistent audio signal transmission.