Overview The 3.5mm Metal Audio Jack Connector is a high-quality stereo plug with a durable metal housing for long-lasting performance. Featuring 3 poles (left, right, and ground), it is perfect for building or repairing audio cables. Commonly used in headphones, speakers, amplifiers, and other audio devices, this connector ensures a stable connection and clear stereo sound. Easy to solder and assemble, it is ideal for DIY electronics and professional audio projects.