Description 1 One button to heating three gear temperature control intelligent heating 2 General USB interface power supply longer service life anti water splashing and washable 4 It can be washed by machine or by hand5 With mobile power bank storge pocket design easy to take when in travel 6 One minutes fast heat dispel cold and keep you warm 7 Warm comfortable and breathable and it s a good partner for your winter going out Specification Product name USB heated coatColor black grey army greenMaterial nylon polyesterSize M L XL 2XL 3XL 4XL 5XL 6XLPower Supply Interface USBPower Supply 5V 2A Mobile Power Not Included Fever Area Back and abdomenTemperature Shift Manual adjustment Warm 50 ℃ Red Light Comfort 40 ℃ White Light Energy Saving 30 ℃ Blue Light How To Use 1 Take out USB plug2 Plug in removable charger3 Switch on the removable charger4 Press the chest temperature control switch for two second5 Red light flashing means heating automatic6 After red light flashes for 5 minutes then automatic turn to white light means medium temperature7 Manual adjustment has three level red light means hign temperature heating continuously White light means medium heating continuously blue light means low heating continuously8 Press the chest temperature control switch for two second lights out and stop heating Washing Instruction 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