Customer first, if there is any dissatisfaction with the product, support full refund within 30 days! Soft Usb Blanket Set Can Be Machine Washable For Home Travel Office Features: Gradient Double-sided cotton velvet : Gradient color, front and back of gray and blue; warm and stylish; made of super soft cotton velvet. USB power connector and extension cord give you a more free experience. 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 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. applicable to ambient temperature below 55°F. Easy to Care: Can be easily treated, machine washable and roller dried. disconnect the power cord before washing or drying. Low voltage safety: 5V-12V/2.0-3.0A standard power output with cable. Material: Falai + lamb cashmere Viflosae Heating Blanket Soft Usb Blanket Set Can Be Machine Washable For Home Travel Office Up to 60% Off Gradient Double-sided cotton velvet : Gradient color, front and back of gray and blue; warm and stylish; made of super soft cotton velvet. USB power connector and extension cord give you a more free experience. 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).