Features: Adjust temperature: this heating pad is controlled by a controller. The temperature of the heating pad is adjustable, with gears 1~10 (30-70C). Timing function, choose within 40-90-150 minutes. Change temperature: A controller controls this heating pad. With gears ranging from 30 to 70 C, the heating pad can be set to any temperature. Using the timing function, between 40 and 150 minutes. Easy to Use: Control with buttons on the wired controller. 10 heating modes adjustable. Anti-scalding and radiation-free. Machine Washable: Material that is gentle on the skin and is machine-washable. Before you wash, take the controller out. Comfortable: Made from superior materials that are lightweight and durable. It fits the back, neck, shoulders, hands, and legs well. Good Choice: Convenient for taking anywhere. In cold weather, reusable hand warmers are also an ideal solution for offices. Notice: 1.Actual color may be slightly different from the image due to different display and light effect. 2.Please allow 1-3cm deviation due to manual measurement. Description: 9 Levels: 1-28/2-29/3-31/4-34/5-37/6-39/7-42/8-47/9-51 Timing: 0.5h/1h/1.5h/2