Description: There are 3 temperature levels from 40 to 60 degrees centigrade for your choice. Depending on the ambient temperature, you can choose the right level for the warm neck. Not only does it provide extra warmth, this heated scarf also promotes blood circulation and relieves neck fatigue. Made from your choice of polyester material, this heated scarf not only provides extra warmth, but is comfortable and breathable to wear. Using a 5V low voltage system, the electrically heated scarf is very safe to use. Multiple safety protection allows only heat to be generated and not to conduct electricity. You can connect this scarf to a portable power source or USB to warm up at any time conveniently. After removing the portable power source, the scarf can be washed with water over the entire surface. Item Name: Heated Scarf Material: PolyesterPower: 6W Temperature: 2A Rated Voltage: 5V Power Mode: USBCome Range: 3 Levels Heating Elements: Shoulder, Neck Temperature Range: 40 - 60 Degrees CelsiusFeatures: Washable, Stiffness Relief, Comfortable Size Details: 85cm x 10cm/33.46" x 3.94" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included:1 x Heated Scarf1 x USB Cable1 x Chinese Manual