Previous page Next page This controller seems to have many functions. Is it more complicated to operate than a single controller? The operation is not too complicated. The upgraded 5-in-1 controller can adjust the temperature level and different heating zones individually with one click, and also has a lights-out function. Is this dress said to be an upgraded model? Yes, the style of the jacket is the latest. It has a thinner and larger heating element, a built-in battery bag, and pure cotton filling, making it warmer than other jackets. Can I wear it on a plane or put it in my carry-on bag? Yes, our batteries are TSA compliant and safe to take on planes. How should I wash this jacket? Can I use a dryer to dry it after cleaning? Hand washable or machine washable, and don't use a dryer. Before machine washing, remove the battery from the zipper bag, put back the plug, zip it up, and put it in the laundry bag for washing.