[Easy To Use] - Safe DC 5V USB powered, user-friendly and also easy to access, just plug it into USB power port to keep your head and neck always warm. [Superior Material] - Double-layer design with quality acrylic fibers and fleece lining, skin-friendly, ultra-soft, warm and comfortable to wear. Water washable and easy to clean up. [Comfortable Heating] - Heating temperature at 45C / 113F, which is the most comfortable range for human body, keeps you warm but not burnt, you wont feel dry hurt by the temperature with ours. [Wide Application] - Perfect to wear daily on the go, winter indoor and outdoor activities such as working, cycling, skiing, walking, camping and more. Easy to pair with sweater and jacket for a stylish look. [Winter Hat Scarf Set] - This knitted hat and scarf set with flexible heating pads inside can fast warm up to keep your head and neck cozy. Designed with a face cover to protect your face from cold wind. Product Description [Winter Hat & Scarf Set] - This knitted hat and scarf set with flexible heating pads inside can fast warm up to keep your head and neck cozy. Designed with a face cover to protect your face from cold wind. [Easy To Use] - Safe DC 5V USB powered, user-friendly and also easy to access, just plug it into USB power port to keep your head and neck always warm. [Comfortable Heating] - Heating temperature at 45C / 113F, which is the most comfortable range for human body, keeps you warm but not burnt, you won't feel dry hurt by the temperature with ours. [Superior Material] - Double-layer design with quality acrylic fibers and fleece lining, skin-friendly, ultra-soft, warm and comfortable to wear. Water washable and easy to clean up. Six colors for choosing Purple-Blue, Black, Beige, Grey, Wine Red, Pink (Optional) Perfect to wear daily on the go, winter indoor and outdoor activities such as working, cycling, skiing, walking, camping and more. Easy to pair with sweater and jacket for a stylish look.