ChargeSmart USB (universal serial bus) charger works with all major brands of mobile devices using micro-USB and Apple cords. Automatically turns on when device is attached. LED (light emitting diode) indicator provides visual status of battery charging: on when charging, off when fully charged. Automatically turns off when device no longer requires power, battery is charged, or when device is disconnected. Features a compact design with eco-friendly components. Input power: 50/60 Hz (Hertz), 0.15A (amps)/115-240V (volts). Output power: 1A/5V. UL (Underwriter's Laboratories) listed, FCC (Federal Communications Commission) verification, RoHS (Restriction of Hazardous Substances) compliant, TUV (certification company)-Canadian Energy Standards. Meets California Energy Efficiency Standards.