This sound card is plug play and driver-free, which is easy and convenient to use. Using double shield copper core, this sound card supports anti-interference and stable audio data transmission without murmurs. It is made of high-quality copper and abs material. There are two sizes for you to choose from. This sound card is suitable for laptop, desktop, speaker, headphone and so on. Item Name: Sound Card Material: Copper, ABS Features: Plug Play, Anti-interference, Stable Transmission Size Details: 100cm, Length: 100cm/39.37"(Approx.) 20cm, Length: 20cm/7.87"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Sound Card