1.4400MAH Battery Hand Warmer 2.charging kinds of digital products 3.Internal Lithium-ion ... Output Voltage, 9V 300mAh and 5V 800mAh.2. Got heating warmer function use the PET materials, and it’s temperature from ... goods with Power charger only, do not with the Heating warmer function, If you need , please contact with us.Business Conditions1 ... of export carton: 38*28*21.5CM 4400MAH Battery Hand Warmer