100% Polyester Imported VIRTUALLY NO EMF - Our electric blanket is engineered for the lowest electromagnetic field radiation possible. The heating element is designed with an evenly spaced pattern, which enables even warmth distribution. 100% UL certified for maximum safety THERAPEUTIC RELIEF - 20 Heat settings allow you to customize your heat settings so you’ll find just the right amount of warmth. Queen and King size feature dual controllers, so you and your partner can chose your own warmth levels. PROGRAMABLE CONTROLS – Compatible with smart home outlets and automatic timers. A one hour preheat feature helps jump start the warming process, or if you prefer, the adjustable auto off can be set from 1-10 hours. The controller cords 12’6” length and the 6’ power cord ensure you have plenty of reach. SUPER SOFT FABRIC - The soft, low profile ribbed microfleece reverses to a solid premium microfleece. Both layers have been treated to prevent pilling and helps limit shifting on the bed. The 100% polyester fabric is easy care - to clean, simply unplug it and toss it into the wash 5 Year Limited Warranty - That is a 5 year promise of savings and service. Please contact our customer service for assistance if you have any questions or concerns about the product