describe:1. Comfortable material and washable: The heated scarf is made of breathable and ultra-light material. Comfortable cotton material with moderate stretch. The entire scarf can be washed repeatedly, it is easy to clean, and you are not afraid of sweating when using it.2.Perfect Gift: A great Christmas gift to keep your loved ones warm in winter. Also great for birthdays and other occasions. Suitable for cycling, hiking, camping, fishing and other outdoor activities in autumn and winter.3. Rapid heating: After pressing for 3 seconds, you can feel the warmth spreading on your neck, promoting blood circulation and making you feel comfortable and relaxed. . 45-minute automatic shut-off and overheat protection ensure.4.3-level heating: Three-level heating control, respectively 55C, 48C, and 42C. It can be easily adjusted with one button and can be easily used by the elderly and children. How to use: USB uses 5V mobile power supply (battery not included).5. After the USB cable is inserted, it can be connected to USB port devices, such as mobile power supplies, personal computers and other 5V low-voltage power supply devices, making it safer to use. Women's fitness band (batteries not included).Specification:Material: PolyesterColor: as shown in the picture(Due to differences between different monitors, there may be slight color differences in the pictures. Please make sure you don't mind before ordering, thank you!)Packing weight: 90 gPacking size: 15x10x3cm(Please allow 1-3 mm error in measurement due to manual operation. Please make sure you don't mind before ordering.)Include:1x heated scarfBatteries not included