Hello, the 24-hour customer service hotline of Rainbow is: 0872-219066④. The "Caihong" trademark was recognized as "China's Famous Trademark" Rainbow Electric Blanket. The production and sales of "Caihong" electric blankets have ranked first in the country for more than 20 consecutive years. "Caihong" electric blankets have won the title of "China Famous Brand Product" for two consecutive years. In 2013, Rainbow electric blankets have ranked first in the country for more than 20 consecutive years. The electric blanket successfully won the China Home Appliances Appland Most Popular Product Award for its high-quality performance and quality. I hope my answer will be helpful to you