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2.Automatic power-off .When temperature reaches 70 degree, the power will cut automatically to prevent to heating.
3.Explosion proof. In case of the thermostat broken, the other expansion controller will begin to operate.
4.Quality is reliable. The warm bag is made of ultra-strong rubber film composite fiber. The heating medium is used to heat up the heating element and reserve the energy .
5.Comfortable hand feeling. The warmer bag cover is made of cotton flannel with soft and comfortable hand feeling.
electrical heat warmer