A. This automatic fuse holder for car audio modification has good power protection functions. It is a resettable circuit breaker that can effectively achieve circuit protection. Made of zinc alloy, it is not only durable but also lightweight, weighing only 0.08 kilograms, which facilitates installation. B. This fuse holder has a wide range of applications and is suitable for vehicle and marine applications. It has dimensions of 73*58*53 millimeters, with a small size that doesn't take up much space. Its operating voltage range is 12 - 48V, with a power of 10W and a signal - to - noise ratio of 10dB, enabling it to operate stably in different environments. C. It is suitable for general vehicle models and comes in multiple specifications, including 20A, 30A, 40A, 50A, 60A, 80A, 100A, 120A, 150A, and 200A without rubber sleeves. In addition, it also comes with rubber sleeves to meet different usage needs. D. Moreover, this product has an authorized self - owned brand. Its sales regions include Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East, and its quality is trustworthy.