Reusable portable heater 1. 4400mAh rechargeable battery 2. Dual sides heating ... different Output Voltage, 9V 300mAh and 5V 800mAh.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 ConditionsTerms ...