This Electric Mattress Office Blanket Bed Heater is made of thickened flannel fabric, with high-grade carbon fiber heating elements for rapid warming. It features intelligent constant temperature, USB rechargeable, and multiple protection technologies. With its multifunctional design, it is ideal for long-term office work, camping, hiking, and more. Stay warm and comfortable with this cozy and ultra-soft heated blanket. Features: 1. Thickened Flannel Fabric: Cozy and ultra-soft, and the internal heating elements are made of high-grade carbon fiber for rapid warming, safe and stable, and can gently wrap you with warmth and comfort during cold days. 2. Intelligent Constant Temperature: Warm and comfortable without drying, even and soft heating, stable temperature, long-term use of body water without loss. Tips: If the ambient temperature is low, it is recommended to cover with a thicker quilt for better warmth retention. 3. USB Rechargeable: The heating blanket throw can be charged via your PC, power bank, or car charger, a built-in large capacity battery, and it can work for up to multiple hours after fully charged. 4. Multiple Protection Technologies: Eliminate leakage from the source, in order to ensure stable heating and improve product safety, it is designed with high-quality heating technology and double-layer spiral heating wires. 5. Multifunctional: It can be used as a shawl to be fixed on the shoulder, or as a small blanket and draped on the legs, which is very suitable for longterm office work, camping, hiking, picnic, and so on. Specification: Material: Thickened Flannel Color: Grey, Khaki, Pink, Brown, Black Temperature: 45~55 Power/Rated Voltage: 10W/5V Product Size: 80 x 140cm Product Weight: 700g Package Included: 1 x Electric Heated Blanket 1 x USB Data Cable