A. This audio cable is specifically designed for car subwoofer modification and is an ideal signal cable for connecting the car audio system and the power amplifier. It is made of pure copper, which has good electrical conductivity. This ensures that the audio signal can be transmitted stably and clearly, effectively reducing signal loss and interference, allowing the car audio system to deliver a good sound quality and enabling you to enjoy a decent music experience. B. In terms of specifications, it is available in multiple lengths, including 0.5 meters, 1 meter, 2 meters, 3 meters, and 5 meters. You can freely choose the appropriate length according to your actual installation needs to meet the diverse requirements of different car models and installation environments. C. The careful design not only ensures good performance but also offers decent durability, enabling it to adapt to the complex environmental conditions inside the car. D. Whether you are listening to music during daily driving or aiming for a good car audio effect, this audio cable will be a reliable helper for you, creating an immersive in - car music space.