Feature:1. Electric heating scarf, suitable for outdoor activities such as mountain climbing, to prevent neck frostbite in low temperature climate.2. The heating element adopts graphene material, which has high thermal efficiency and flexibility.3. With a large area heating design, the entire neck is evenly heated for warmth, which is comfortable and warm.4. Ergonomically designed, adopts 3‑level temperature control, it is an indispensable heating product in severe winter.5. With a USB interface, you can use 5V mobile power to charge, safe and reliable, and easy to charge.Specification:Item Type: Heating ScarfMaterial: Polyester FiberPower Supply Type: USB PoweredRated Voltage: 5VPower: 5WHeating Temperature: 42-58℃Body Care Parts: Knee Pads, Shoulder Pads, Waist Pads, Leg PadsProduct Function: Graphene HeatingProduct Selling Point: Keep WarmController Gear: 3-Gear RegulationWeight: Approx. 197g / 6.9ozSize: Approx. 85x9.5cm / 33.5x3.7inInstructions for Use:1. Long press the heating button for 2 seconds to turn on the hot compress mode, and the red light is high temperature hot compress, warm mode, heating constant temperature of 55℃2. Short press the heating button, the white light is medium-temperature hot compress, comfortable mode, and the constant temperature is 48℃3. Short press the heating button again, the blue light is low temperature heat compress, energy saving mode, heating constant temperature 38℃4. Long press the heating button for 2 seconds to directly turn off the hot compress function.Package List:1 x Heating ScarfNote:1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.