... power bank Specification: Capacity4000mAh/14.8Wh Cell typePolymerInput900mAOutput800mASize11.6L x 6.5W X0.8H cm Weight130gFeatures:1.Fashion, Ultra-thin,LED Torch ... to higher power output by pressing the button(800mA,1500mA)6.Multiple safety protection :over current,over charge,over voltage,short ...