Energizer Portable Smartphone Charger for smartphones and iPhones, 1 USB Port Charger more than doubles the run time of most smartphones and easily recharges in just 3 hours Use your existing device USB cables (Apple, Micro, Mini, etc.) to connect your device the USB port Magnetic cable clips keep your cables and the Micro USB cable (included) organized ON/OFF button allows you to control charging Charges most 5W smartphone devices at the speed of traditional chargers