Description:1. One key to turn on, 3 seconds fast heating, continuous heating, long-lasting heat.2. Three levels of temperature control, the red warm level is 60 deg; C, Blue comfort level is 55 deg; C, and the green energy saving level is 40 deg; c.3. High-quality cotton fabric, fashionable and versatile, soft and skin-friendly.4. Washable repeatedly. Precautions: Note: The power bank is not included Due to lighting effects and shooting angles, chromatic aberrations may occur, please understand. Due to manual measurements, product dimensions may vary. Product Name: Heating ScarfSize: 80*11cm Temperature Setting: 45-60°C Weight: 387.5g Material: Cotton Suitable Mobile Power Source: 5V/1Ac: 5w Nominal Voltage: 5V Temperature Control Range: 35 Degree-55 Degree Packing List:1 * Heating Scarf1 * USB Cable