This is a high-quality circuit breaker, an audio resettable fuse holder switch, specifically designed for scenarios such as cars, RVs, and yachts. Its design is ingenious, crafted from bakelite. Bakelite has excellent 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 universal 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 ratings 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 overload and short - circuit protection for the circuit, ensuring circuit safety; it can also be used 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 and audio experience of your cars, RVs, yachts and other equipment. In addition, the self - owned brand can be licensed, providing more possibilities for your business expansion.