Sturdy cable with a built-in surge protector designed for Micro USB-equipped devices. The circuit breaker protects your phone by automatically shutting off if it detects damaging voltage or current, preventing issues from overheating. There is no fuse to change and both the cable and your device will remain undamaged. Its PET polymer jacket makes it chemical, heat, and abrasion resistant for an additional layer of protection. Real time power monitoring and fast reacting switch ensure fast, front-line device protection.