Features： 1、The inverted trapezoid three?dimensional sewing technology, fits the neck and effectively supports it while ensuring that the neck can move flexibly. 2、Far?infrared carbon fiber heating material, safe, healthy and durable. Using imported OK cloth, the surface is delicate, elastic and strong. 3、It can effectively relieve neck pain and speed up blood flow, and promote blood circulation in the neck. 4、The heating material uses the newly developed composite fiber heating material, which has the characteristics of fast heating, no thermal inertia, and bending resistance. 5、There is pocket on the inside, you can put moxa, safflower, ginger and other traditional Chinese medicine bags according to your own needs, and match with carbon fiber heating therapy, care for neck. Specification： Item Type: Heating Neck Belt Material: OK Cloth Size: Approx. 53 x 13cm / 20.9 x 5.1in Product Description: 1. The breathable fabric has good elasticity and keeps the body warmer. 2. The inner carbon fiber heating film, the inner warm keeping effect is better. 3. The hook & loop fastener is convenient and quick to use. Features Infrared healths care: The heating material uses the newly developed composite fiber heating material, which can release far-infrared rays beneficial to the human body, improve blood circulation, promote blood circulation, and healths care. How to Use: Turn on the power, click the temperature adjustment button to start heating, and the timing will be 30min, and it will be displayed as green light. Click to adjust the temperature, a total of three gears; there is also a timing function, 30min, 45min, 60min. Package List： 1 x Neck Belt 1 x Connecting Cable