At the heart of this blanket is Sunbeam's Advanced ThermoFine warming system. It senses and adjusts to cold spots on your body, sending more heat where you need it the most. Lightweight and portable with 3 heat settings and 3-hour auto-off. Auto-off feature provides safety and convenience. To bypass, just turn off and on again. You can also save energy by turning up the heat on your Sunbeam Warming Throw and turning down your thermostat to still relax in warmth and comfort! The ThermoFine warming system has been engineered to eliminate over 95% of EMF as compared to resistance wire heating systems. Includes Manufacturer's Warranty.