Hi, Dear little angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Heated Blanket Soft 5V Electric USB Blanket Zipper Machine Washable For Home Travel Office (100x140cm/39.4x55.1inch) With 120cm Extension Line Features: warm and stylish; made of super soft polyester fiber. 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 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 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 safety: 5V-12V/2.0-3.0A standard power output with cable. Material: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 Size:100x140cm/39.4x55.1inch Package Contents: 1X electric blanket; 1x1.2m extension line; 1x non-woven bag Features: warm and stylish; made of super soft polyester fiber. 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 luxury travel, office, home, outdoor and vehicle use.