This is a high-quality circuit breaker audio resettable fuse holder switch, specifically designed for scenarios such as cars, RVs, and yachts. Its design is ingenious, crafted from bakelite material. Bakelite has good insulation, heat resistance, and mechanical strength, providing reliable protection for equipment and ensuring safety and stability during use. It has excellent adaptability and is suitable for general vehicle models. No matter what type of car it is, it can be easily adapted without worrying about compatibility issues. The specifications are very rich, covering a variety of different current specifications such as 30A, 40A, 50A, 60A, 70A, 80A, 100A, 120A, 150A, 200A, 250A, and 300A, which can meet the diverse needs of different users in different scenarios. In terms of usage, it can not only be used as a circuit breaker to provide over - load and short - circuit protection for the circuit, ensuring circuit safety; but also as an audio resettable fuse holder switch to protect audio equipment and prevent damage to the audio caused by excessive current. It safeguards the electrical safety of your cars, RVs, yachts and other equipment and enhances your audio experience. In addition, the self - owned brand can be licensed, providing more possibilities for your business expansion.