Made of ABS and PC Plastic; Rechargeable Lithium-Ion batteries Input: 5V/900mA; Output: 5V/1000mA; Capacity: 4000 mAh; Charge time differs by device Must charge power bank prior to first use; Two-tone universal international emergency mobile smartphone battery charger; Features single bright white LED flashlight at one end Double press power button to activate light; 4 blue LED indicator lights on top panel advise of remaining power supply All 4 lights to indicate full charge Lights will turn off one by one as power is drained from device; Indicator lights flash while device is charging and blink when power bank is charging your device; USB charging cable provided; Product Size: 4 w x 1.75 h x 1 d; Shipping available to contiguous U.S. addresses and Canada via Ground only. Cannot ship via Air, Internationally or to Alaska, Hawaii, Puerto Rico and any other small U.S. island territory.