Description: All adapters can only used with portable players , do not use in high-power AMP desktop player. The use of high purity annealed single crystal copper as a wire does not diminish signal strength. The 2.5 mm and 3.5 mm plugs on both ends of the cable are made of a copper-plated material and an aluminum alloy mixture for safer use. Woven cotton mesh, strong resistance to pull, arbitrary angle fold, not easy to wrap. 100% brand new, high quality. Specification: Material: plastic Length: approx. 0.2m / 0.65ft Package Includes: 1 Piece 0.2m 2.5mm male turn to 3.5mm female balance adpter Note: Since the size above is measured by hand, the size of the actual item could be slightly different from the size above