Product Name: 5V Black Heated Vest with Power Bank Model NO.: SR06 Color: Gray, Transparent etc Length: 1 to 50000 M etc Form: Loose Filling: Non-Woven Heating Pads Material: Nylon Feature: Preheat Gender: Unisex Diameter: about 0.95mm Coated: FEP Pack: 1000 M Per Spool Spool Weight: 300g Strength: More Than 50n Trademark: Senphus Transport Package: Spool. Carton, Wood Case Specification: ISO14000 Origin: Jiangyin Wuxi HS Code: 85168000 Product Description 5V Black Heated Vest with Power bankSenphus 5V black heated best with USB plug and can connect with power bank or computer USB output directly,which is portable.Senphus heated vest pads are waterproof, 2 years warranty and can be bended endless times.Senphus heated vest keep you warm in frigid high mountain and winterPerfect for outdoor activities under frosty climate