Electric Blanket USB Warm Bed Heater Thermostat Electric Mattress Soft Heating Blanket Warmer Heater Carpet Gradient Double-sided cotton velvet : Gradient color, front and back compose of gray and blue; warm and stylish; made of super soft cotton velvet material. USB power connector and extension cord give you a more free experience. Only Central Heating: Lightweight and invisible,built-in carbon fiber heating pad can be used by mobile power, laptop, car USB adapter,USB socket charger, USB hub, MicroUSB mobile phone charger. Recommendation (5V-12V/2.0-3.0A output power). Indoor + Outdoor: Designed to provide extra warmth for luxury travel, office, home,outdoor and vehicle use. It has a portable function and generates a reasonable amount of heat according to the USB power limit. The recommended output power is 5.0V-12V/2.0-3.0A. Not applicable to ambient temperature below 55F. Easy to Care: Can be easily treated, machine washable and roller dried. Pleasedisconnect the power cord before washing or drying. Lowvoltage safety: 5V-12V/2.0-3.0A standard power output with waterproof cable. Material:Falai cashmere + lamb cashmere Size: 60*80cm Package Contents:1X Heating blanket