Feature 1 Face beauty and body shapingActivates various functions between skin and promotes metabolism 2 Body warming and blood circulationWarms the human body consumes excess heat increases blood oxygen and fluidity 3 Vitality restorationProvides deeper adjustment of physiological functions to avoid sub health state and restor the vitality 4 Pain reliefCan improve the body s microcirculation dredge and activate the meridians eliminate local pain and inflammation 5 Humanized heating part is designed for the cold part of the front chest shoulder neck and back 6 Infrared heating with no harmful radiation and stable performance is safe and reliable environmentally friendly energy saving soft and comfortable Specification Size S M L XL 2XL 3XL 4XL 5XL 6XLColor Red Blue BlackMaterial Cotton PolyesterVoltage 5VOutput USB 5V 2A Temp Range 39 56℃ 102 21 132 8℉ Fever area 9 single button heating zonesTemp Control 3 settings high middle low Double ButtonLasting time Depending on the setting And battery capacity Size Unit cm Chinese size please choose bigger one size sizeclothes lengthshoulder widthchest circumferenceHem S6442 85042M66445244L6845 25446XL7046 456482XL7247 658503XL7448 860524XL765062545XL7851 264566XL8052 46858 Note 1 The cable is waterproof can be washed 2 People who are sensitivity to heat applications diabetics circulatory problems should not wear the battery heated coat Please consult your physician before using 3 Always con