This is a high-quality 3.5mm stereo audio jack. Perfect for audio and headphone projects. This 3.5mm male stereo solder connector is typically used for analog signals such as audio, high-quality applications. With an ergonomic hexagonal housing, this cable mounting connector also has an integrated strain relief for bend protection reducing damage to the connector caused by everyday wear and tear. These plugs offer even resistance values on each pole. This is achieved by balancing the length and cross-sectional area of each contact point. Brass is the base material with gold plating.