1. The heating scarf is made of fleece fabric, with a heating sheet in the middle. The USB connector can be linked to a power bank (not included) for charging. 2. There is a zipper pocket inside the heated scarf for storing small items, convenient to use and foldable for storage. 3. Hidden switch button with key switch/adjustment design. Long press for three seconds to turn on. Initial setting is low heat. Click to switch gears: blue indicates low temperature, green indicates medium temperature, and red indicates high temperature. 4. Using a 3500 mAh power bank as an example, low temperature is approximately 42°C, medium temperature is approximately 48°C, and high temperature is approximately 55°C. The scarf automatically shuts off after 2.5 hours of use and can be turned on again later. 5. The scarf is finely made with neat stitching, suitable for outdoor activities such as cycling, skiing, snowboarding, skating, mountaineering, climbing, and hiking. Weight: 0.09 kg Color: Black Material: 100% fleece Size: 26 x 14 cm Package Contents: 1 x Heated Scarf Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement allows an error of +/- 1-3 cm. Please allow 1-3 mm error due to manual measurement and slight weight variation. Colors may differ slightly due to lighting and monitor settings. Shipping: All items will be shipped within 3 business days after payment. Delivery typically takes 8–12 days, depending on location. If you have any questions, please . We aim to respond promptly. Thank you and enjoy your shopping experience!