Description: In order to ensure the signals between source and your earphones are purely and reliably sent, the uses high-purity annealed single crystal copper for its wire material. This ensures excellent frequency response and especially clear and exquisite vocals for an upgrade you can't help but hear. Compared to your typical adapter, the uses more high-end material in both the wiring and connectors, resulting in a sound with timbre that sounds noticeably more refined. With high quality HPC-23T annealed high-purity single crystal copper wire manufactured wrapped in a TPE skin, all constructed with excellent workmanship, the exudes quality both in sound and looks. In addition, the 3.5mm and 3.5mm plugs on the ends of the cable are made of copper plated material and an aluminum alloy mix, for a smooth feel that captures the attention of onlookers. All adapters can only used with portable players , do not use in high-power AMP desktop player. Specification: Material: Plastic Size: 200 x 10 x 10 mm / 7.87 x 0.39 x 0.39 inch Cable length: 7.87 inch Package Includes: 1 Piece 3.5mm Male to Female Cable