USB charging use: The handle is equipped with 2600 mAH batteries. When a lithium battery is used as a power source, it provides cool air; When connected to a power outlet, it provides hot air (1 level) and cool air (2 levels). Portable: The portable cordless hair dryer is battery operated and lightweight. The wireless design allows you to read emails or walk freely while drying your hair and is easy to carry. Perfect for home, hiking, travel, outdoor camping and watercolor butane drying, etc. Healthy design concept: Baby and pet hair is relatively fragile, and hair dryer High power hair has more radiation and should not be used. Cold and Hot Cordless Professional Hair Dryer: Hot and cold wind hair dryer. The built-in temperature care system blows at a constant temperature of 40 soft and smooth. Heat spreads stably and evenly to protect hair and head from intense heat. Especially suitable for small children, paint drying, pet dog, etc. Perfect Gift: This versatile hair dryer is an ideal gift for your wife or daughter. An ideal gift for a mother, girlfriend or daughter. Ideal for birth, New Years, Christmas, Valentine's , Mother's and many other holi.