Surrounded by Warmth With three large and powerful heat zones backed by conductive thread technology, Zen will keep you warm wherever you go. Portable or Plug-in Zen was designed to go with you wherever you go. With our 20,000 mAh included battery, you can take Zen on the move with up to 7 hours of heat. Alternatively, it also comes with our direct power kit for unlimited stationary power. Control Your Temperature Three distinct heat settings: Low, Medium, and High, you are able to customize your experience to match any situation you're in.