The PowerZone USB charger with surge protection is easy to install and use by just plugging in a wall socket. One-stop charging station for smartphones, iPhones, iPad, Kindles, and Tablets. These USB ports charge faster than traditional USB ports. It has an intelligent built-in voltage sensing circuitry that detects and responds to your device's power needs, while safety features, such as thermal fuses that power off your system in the event of a severe occurrence, ensure that your devices are protected.