Note:  5V/2A Portable Source (Not Included).  This clothes belongs to slim style, please judge the appropriate size according to the size chart before buying.  If you like more loose, please increase one size to buy, please know it before your buying.     Description:  Antifouling & waterproof vest Fit for men and women;  Temperature (Manual adjustment);  Warm:50 degree Celsius (Red Light);  Comfort:40 degree Celsius (White Light);  Energy Saving:30 degree Celsius (Blue Light);  Intelligent Heating USB Hooded Heated Work Jacket Antifouling  Waterproof Coats Adjustable.     Specification:  Material: Graphene Carbon Fiber + Fleece;  Color: Black/Blue;  Size: S/M/L/XL/2XL/3XL/4XL;  Power Supply Interface: USB;  Power Supply: 5V/2A Portable Source (Not Included);  Fever Area: Back+Abdomen+Back;  Function: Keep warm,Waterproof , Antifouling and Prevent cold;  Age Of Application: Adult Men.    Features:  This is a intelligence coat for you.  Built-in portable source storage pocket, easy travel.  Back fever, covering the cold area.  Set the temperature you want to respond to a variety of environments.  A button to heating, three stall temperature control, intelligent heating.  The fashion is warm, comfortable and breathable, and it's a good partner for your winter going out.  General USB interface power supply, longer service life, removable hats, anti water splashing and washable.     How To Use:  1.Take out USB plug.  2.Plug in removable charger.  3.Switch on the removable charger.  4.Press the chest temperature control switch for 3 second.  5.Red light flashing,means heating automatic.  6.After red light flashes for 5 minutes, then automatic turn to white light,means medium temperature.  7.Manual adjustment has three level, red light means hign-temperature heating continuously. White light means medium heating continuously,blue light means low heating continuously.  8.Press the chest temperature control switch for two second,lights out and stop heating.     Washing Instructions:  1.Take out removable charger.  2.Neutral detergent is available and then hand wash.  3.Do not force knead or beat.  4.After nature air drying can be use.     Warm Tips:  1.If not used for a long time,please do not plug in removable charger.  2.Do not use high temperature water or strong acid detergent.  3.Forbidden to use electricity for wet clothes,Please turn off the power and stop using if cloth is wet.  4.Use time depending on the capacity of removable charge.     Package Included: 1 X Coat (Portable Source Not Included).