● One 18650 batteries● Elf compact the go● Gift of choice● LOGO can be customizedItem#E-01Input Power            5V  800mA-1A  Output Power                5V  1-1.3A    Conversion efficiency≥  85  %   protection circuitNet Weight75 gDimensions91*25*25mm   InterfaceOne  USBBattery Type18650 With proof PTCShell MaterialABS+PC fireproof shellCan be equipped with color white,pink,red,green,blue,yellow,blackStandardProducts + an input line + manual + box E-02