Features： 1、Two?in?one design, it can provide electric heating for shoulder and waist at the same time. 2、Technology?leading PTC effect heating technology, the temperature of the corresponding gear is automatically constant. 3、External three?gear temperature control switch, more convenient and practical. The heating temperature ranges from 38 Degree C to 55 Degree C, you can adjust according to your own needs 4、Made of newly developed composite fiber heating materials, fast heating, no thermal inertia, and folding resistant. 5、The fabric is imported cloth, with delicate texture, full of elasticity, strong and durable. 6、Equipped with high?quality heating materials, energy saving and power saving, absolutely safe and reliable. 7、The voltage of the input product is only 3.7?8.4V, which is absolutely safe and reliable. Specification： Item Type: Shoulder Waist Heating Belt Material: Cloth Plug Type: 3.5mm DC plug Size: Approx. 100 x 74 x 43cm / 39.4 x 29.1 x 16.9in, Cuff Width: Approx. 16cm / 6.3in Instruction: Turn on the power supply, the three gear switch on the electric heating product will be on for a self-test. After the self-test, the light will go out, and then press the button for three seconds to start the machine. The product will slowly heat up in a few minutes. The temperature can be adjusted in three gears. Click to shift gears. Red is high gear, green is medium gear, and blue is low gear. Long press to turn off. Heating Position: Shoulder, built-in movable heating piece Feature: Two-in-one thermal physiotherapy shoulder and waist belt, which can provide electric heating for the shoulder and waist at the same time. Infrared Care: The heating material uses the latest developed composite fiber heating material, which can release far-infrared rays that are beneficial to the human body, improve blood circulation, regulate human meridians, promote blood circulation, improve immunity, health care, and prolong life. Package List： 1 x Shoulder Waist Heating Belt