Gizmo Supply 3 Zone Fir Far Infrared Sauna Blanket Water proof and made of soft material with flexible tensile capabilities even in various sleeping position. The Heating wire is design to withstand any stretches or bends. Outside the unit is made of top grade PU material, inside is waterproof PVC. Three independent heating zones can be selected individually, upper body, waist section, and lower body. Temp adjustable from 77 to 185 degrees Fahrenheit (30-85 Celsius) Convenient and easy to use. You can use this in the comfort of your own home or office. Easy to store and put away after usage, very compact. Blanket Size: 170cm/66 inches/5.5foot(Length) by 83 cm/32 inches/2.7foot(Width), 110V