Water-resistant jacket with three carbon fibre heating elements. Heating elements are in the back and each side of the chest. Three different heat modes controlled by colour changing button (BlueLow, GreenMedium, RedHigh). Power bank not included but required, recommended 2A output for optimum use. Features & Benefits:Water-resistant jacket with three carbon fibre heating elements.Heating elements are in the back and each side of the chest.Three different heat modes controlled by colour changing button (BlueLow, GreenMedium, RedHigh).Power bank not included but required, recommended 2A output for optimum use.Model No. WPHJ01 Specifications: Model No WPHJ01 Brand: Sealey Current Draw: 6W Size: Small