Customer first, if there is any dissatisfaction with the product, support full refund within 30 days! Heated Blanket Soft 5V USB Blanket Machine Washable For Home Travel Office With 120cm Extension Line Features: USB power connector and extension cord give you a more 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. Product Description: The recommended output power is 5.0V-12V/2.0-3.0A. Not applicable to ambient temperature below 55°F. Easy to Care: Can be easily treated, machine washable and roller dried. Please disconnect the power cord before washing or drying. Low voltage : 5V-12V/2.0-3.0A standard power output with cable. Material:polyester fiber warm and stylish; made of super soft polyester fiber. minute heat cycle between 40-60 There is a temperature control chip in the heating, which automatically cuts off power when it is higher than 65 degrees and automatically heats when it is lower than 40 degrees Viflosae Heated Blanket Soft 5V USB Blanket Machine Washable For Home Travel Office With 120cm Extension Line Electric Blanket Up to 50% Off USB power connector and extension cord give you a more 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.