Slim aluminum power bank emergency battery charger with snow canvas accent wrap body. Power /Technology: Input DC 5V/1000mA; Output DC 5V/2100 mA. Rechargeable Polymer battery. Capacity: 4000 mAh. Features4 LED indicator lights: all 4 lights are illuminated when device is fully charged. Indicator lights flash while device is charging, and blink when power bank is charging your device. Lights will turn off one by one as power is drained from device use. Charge time differs by device. Must charge power bank prior to first use. Includes USB charging cable and instructions. CE, RoHS and FCC approved. UL Certified (UL File # MH60484). WARNING: Refer to the item manual for safety and warning instructions.This item can only ship to the contiguous United States and Canada via ground.