A. This junction box for car audio amplifier modification is a choice that combines practicality with quality. It is made of zinc alloy, which is sturdy and durable, providing reliable support for the stable operation of the car audio system. B. In terms of design, its dimensions are 70*50*30 (mm). It is small and delicate, taking up little space, which facilitates installation and layout in the car. C. It has a wide range of uses. Specifically designed for vehicles, it is suitable for various car models. No matter what kind of car you drive, you can use it to optimize the car audio amplifier system. In terms of performance, its voltage range is 12 - 48 (V), the power is 10 (W), and the signal-to-noise ratio is 10 (dB), which can effectively improve the sound quality of the car audio and allow you to enjoy good music during your journey. D. In addition, this product has an authorized self-owned brand, ensuring its quality. Its sales cover multiple regions such as Africa, Europe, South America, Southeast Asia, North America, Northeast Asia, and the Middle East. It is trusted by users around the world and is a good choice for your car audio modification.