Description: 3.5mm male plug headphone audio connector, soldering type, copper plated construction. Usage: 8mm to 3.5mm stereo audio adapter allows you to connect your headphones or microphones with 1/8 inch plugs to audio devices such as home audio, amplifiers and guitar. Widely used in home, KTV, or other places where use the audio devices. Gold-plated Copper: Minimized the signal loss and preserving the sound quality. 1/8" stereo (TRS) mini plug?extra large 8 mm cable entry?make your own cables to the perfect length. Specification: Size: Approx. 45x10x10mm / 1.77x0.39x0.39inch Package Includes: 2 Pieces Stereo Audio Adapter