【Automatic Switching】Auto-switching audio circuit breaker reset fuse holder. Effectively protect your amplifiers from power surges. Very practical. 【High Performance】Made of alloy for good electrical conductivity and resistance to high temperature and pressure. Perfect solution if you need a circuit breaker reset fuse holder. 【Safety】High-tech housing is waterproof. Strengthen safety, reduce electricity consumption. 【Multi-function】Reset push button can be used as a circuit breaker. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.