1. The blanket warms up quickly when it is turned on, and the temperature will remain when you are asleep.2. Dedicated USB power supply cable, can be connected to laptop, power bank.3. Unique pocket design keeps your hands from freezing. 4. The Portable students warm blanket is perfect for travel, trains, airplanes, cars, picnics, offices or just for home use.Specification:- Item Name: Electric Heating Blanket- Material: Flannel, Plush Fleece- Gender: Unisex- Power Supply: USB cable- Hand washable, machine washable. It is recommended to dry naturally (do not twist dry by hand)What's in the box?1 X Heated scarf (not include power bank)Advice:1. When not using this product, please turn off the power, unplug the USB plug. Otherwise, it may damage the product.2. Before connecting this product to the power bank, please make sure the power bank USB loop output current is more than 2A.3. If You Have Any Questions, Please Feel Free To Contact Us And We Will Be Happy To Help You.