A. This is a speaker cable designed specifically for car audio systems and belongs to the category of audio cables. It is made of 16GA pure copper with a jacketed tube design, which can provide stable signal transmission for car audio. B. In terms of specifications, there are multiple options, such as 18GA (180 strands), 16GA (224 strands), 14GA (318 strands), and 12GA (518 strands). You can buy it by the meter or choose the specification of 50 - meter rolls to meet the diverse needs of different users. C. Its charging type is the common car charger, and the charging method is wired charging, suitable for common car charging environments. D. Thanks to its careful design, it can effectively reduce signal interference, allowing car audio to play purer and clearer sound, bringing you a good in - car music experience. It is an option to improve the performance of car audio systems.