Tiancheng infrared health care body warmer could be used warm body, such as hands, feet, back, waist, shoulder, knee. BNA ... 70 IntroductionTiancheng infrared health care body warmer Characteristic:1. Apliance: Tiancheng infrared health care body warmer could be used warm body, such as hands, feet ... , only 3~8W is needed for use.5. The heating element is PTC heater, manufactured by our company, surface ...