Function: This sauna heater blanket with far infrared sauna is used for fat burning, to speed up the metabolism, to promote blood circulation, etc. The long and wide cover design is suitable for most customers. Emit a low energy emission heat that can activate the metabolism, relax muscles, increase blood circulation throughout the body, remove excess toxins and also circulate lymph. High quality: The exterior is made of high quality PU material, the interior is made of waterproof PVC, is safe, waterproof and soft and has a flexible traction even in different sleeping positions Alarm function: If the appliance does not operate properly, the temperature is not set and heated to 85 ° C. The unit automatically shuts off the line, stops the heater and gives an alarm for one minute Automatic shutdown: Unique heat output with 9 ~ 14 ?m infrared. If the far infrared heating wire breaks and the thermal sensitivity is abnormal, the unit will automatically disconnect the line and the screen will indicate that the heater is off and an alarm for one minute is output. Multi-control temperature setting: rapid increase and accurate control of temperature, reducing power consumption. This deeply relaxing treatment is also ideal for stress relieving joints and stiff muscles that will revitalize you when you are looking for immediate detox pain relief or you just want to fall a size of clothes. Recovery therapy for the shoulder, hips and waist, back and legs