2/4/9 piece winter intelligent USB charging heating cotton clothing, men's jacket

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 two 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 Temperature Shift(Manual adjustment) Warm:45 ℃ (Red Light) Comfort:35 ℃ (White Light) Energy Saving:25 ℃ (Blue Light) Specifications: Style: Sleeveless Vest Material: Polyester Color: Black, Blue Size: M/L/XL/2XL/3XL/4XL Power Supply Interface: USB Function: Keep warm, Anti water splashing and Prevent cold 9 zone heating This model is an upgraded version. The heating effect is the best. It can reach the whole body heating state. T here are original heating elements on the front and back. At the same time, the power consumption is also very fast. It can also produce effects at extremely low temperatures. 2 zone heating This version is the most economical. Only the backpack and the neck are heated. It contains two heating elements. The energy consumption is the lowest. The heating time is the longest. Note:  NousRecommande d'utiliser 5 v/2A à Assurer un bon effet de chauffage Instructions: 1. Vérifiez la prise USB 2. Accès au trésor 3. Adaptateur sur le commutateur de sortie de la batterie externe de charge 4. Détecteur de température d'humidité sur le détecteur de température de l'humidité pendant 2 secondes