Fit & Design: Built-in heating panels strategically placed on the neck and hand pockets Sizes Available: Unisex - One Size Breathable fleece Water-resistant fleece sheds rain and snow An advanced heat-trapping insulation layer Ultra-fine carbon fiber heating panels Technology: Touch-button control technology (3 settings) 4 LED power indicators display power banks battery life Battery Voltage: 5-Volt Additional Details: Machine Washable - Gentle Cycle One ActionHeat 5V Heated Scarf W/ Heated Pockets One ActionHeat 5V Power Bank (6000mAh) One USB Charging Kit Heating time: high (red) – 145 3+ hours Heating time: medium (white) – 135F 4.5+ Hours Heating time: low (blue) – 125F 7+ hours