1. This car audio power cord fuse holder is designed specifically for car audio systems and can be suitable for all car models. It can match well with different types of cars and provide stable support for your car audio. 2. It is made of zinc alloy. Zinc alloy has good strength and durability, which can ensure that the fuse holder is not easily damaged during long - term use and can effectively resist various complex car environments, providing reliable protection for car audio equipment. 3. This product comes in two designs: one - to - one and one - to - two. The one - to - one design is simple and practical, capable of accurately providing a safe power connection and insurance protection for a single device. The one - to - two design is more flexible and can power two devices simultaneously, meeting different usage needs. Whether it's an amplifier or a subwoofer, it can handle them easily. 4. This fuse holder is suitable for many regions around the world and is quite popular in regions such as Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East. In addition, it has an authorized self - owned brand, which provides some guarantee for the product. If you're troubled by the power insurance problem of your car audio, this fuse holder would be a good choice, bringing a safer and more stable usage experience to your car audio system.