Specifications BrandTENGOOMaterialPolyesterColorBlackWeight0 5kgSizeM L XL 2XL 3XL 4XLFunctionKeep Warm HeatPower5V2AFeatures4 Control Zones 11 Heating AreasFever in Zone 15Back Neck Shoulders Waist Both Sides of Abdomen After Turning on The Power You Can Feel The Warmth All over Your Body TemperatureLOW Blue light 25â??MID White light 35â??HIGH Red light 45â??Feature 1 1 Minute fast heat dispelling cold and keeping you warm 2 Set the temperature you want to respond to a variety of environments 3 A button to heating three stall temperature control intelligent heating 4 It can be washed by machine and can be washed by hand Do not wring it by hand 5 General USB interface power supply longer service life anti water splashing and washable 6 The fashion is warm comfortable and breathable and it s a good partner for your winter going out Notice 1 if not used for a long time please do not plug in the removable charger2 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 the cloth is wet4 Use time depending on the capacity of removable change5 When cleaning put the USB plug in your pocket and zip it up 6 Please check the size chart before buying and choose the size that suits you best Package Included 1 x Heated Jackets Vest No Power Bank Included 1 x Manual