Customer first, if there is any dissatisfaction with the product, support full refund within 30 days! Hot Water Bottle Plus Soft Usb Blanket Set Can Be Machine Washable For Home Travel Office Feature: blanket: Gradient color double-sided cotton velvet: gradient color, the front and back are composed of gray and blue; Warm and stylish; made of super soft cotton velvet material. The USB power connector and extension cord give you a more experience. Central heating only: light and invisible, built-in carbon fiber heating pad, can be used for mobile power, laptop, car USB adapter, USB socket charger, USB hub, MicroUSB mobile phone charger. Recommended (5V-12V/2.0-3.0A output power). Indoor + Outdoor: Designed to provide extra warmth for travel, office, home, outdoor and vehicle use. It is portable and generates reasonable heat based on USB power limits. The recommended output power is 5.0V-12V/2.0-3.0A. Not suitable for ambient temperatures below 55°F. Easy to care: easy to handle, machine washable and dry. Please disconnect the power cord before washing or drying. Low voltage safety: 5V-12V/2.0-3.0A standard power output, with cable. Material: Falai + small Viflosae Heating Blanket Hot Water Bottle Plus Soft Usb Blanket Set Can Be Machine Washable For Home Travel Office Clearance Sales Today Deals Prime Gradient color double-sided cotton velvet: gradient color, the front and back are composed of gray and blue; Warm and stylish; made of super soft cotton velvet material. The USB power connector and extension cord give you a more experience. Central heating only: light and invisible, built-in carbon fiber heating pad, can be used for mobile power, laptop, car USB adapter,