... for OFF, .for low temperature, .for high temperature.When the warmer is ON, then the LED indicator turns red, at the ... in a dry place.During use and storage, if the warmer appear abnormal phenomena such as smelly, hot, discoloration, deformation and ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); hot pack pad electric USB li-battery hand warmer CE & ROHS approved