Product Description 1.Heating Fleece Scarf: Three-Second Speed Heat/Intelligent Temperature Control/Lock Temperature to Keep Warm 2.Usage: Press and hold the button for 3 seconds to turn on the machine: The smart scarf can be turned on with a touch of a button, and always keep your hands warmth. 3.Easy to use: 5V low voltage is safer to use. The heating plate works at low voltage, and the multiple safety protection system only conducts heat and does not conduct electricity. 4.Waterproof design: Not afraid of washing, shampooing, heating system, waterproof and non-leakage, the product can be soaked in water as a whole, and the power interface is insulated and waterproof! 5.Lightweight and portable: convenient to carry when camping or other activities in winter. It also applies to people who are afraid of the cold, they no longer worry about winter. Specification: Material: Polyester Power supply: USB Charging Package Includes:1x Adult Scarf Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)