Feature: 1. PLUG IN USE: Can be plugged directly into the scarf for warmth with a 5V 2A power source, such as a computer, power adapter or power bank, wihch is not included. 2. Adjustable: The maximum temperature of this temperature adjustable scarf is 55℃, and the adjustable temperature is 40 to 55℃, you can adjust it according to your needs. 3. PORTABLE: The scarf is designed to be foldable, making it easy to carry during winter camping or other activities. It is also suitable for people who are afraid of cold and they no longer worry about winter. 4. SHORT PLUSH: This heated scarf is made of short plush fabric, which feels good, warm and breathable, skin friendly and comfortable, and it has a good warmth effect. 5. HOW TO USE: You can press and hold the button for 3 seconds to turn on. When temperature is high, the scarf outputs 100% voltage and then the red LED is on. 5 minutes later, it automatically returns to medium temperature gear and then the green LED is on. Press the button to control temperature rise, medium, low. Press and hold button for 3 seconds to turn off. Specification: Item Type: Heated Scarf Product Material: Short plush fabric Weight: 100 g / 3.5 oz(approx.) Temperature: 40-55 ℃ Product Characteristics: 3 gear temperature adjustable, intelligent temperature control Heating Area: Central heating Voltage: 5V Power Supply: Power bank, laptops and other USB ports (not included). Package List: 1 x Heated Scarf