describe: Infrared heating therapy arthritis knee pads knee pads knee pads relieve knee joint pain and knee joint rehabilitation health care Fast heating electric knee pads: heating in seconds, providing super comfortable heat therapy for knee arthritis pain relief and injury recovery, keeping the knee warm, and can also be used on the calves, thighs, and arms to relieve muscle aches and cramps. Comfortable to use The function of the knee heating pad: -Relieve knee joint pain related to arthritis, bursitis, strain, sprain, ACL PCL MCL meniscus tear -Help recover from knee injury or surgery -Leg or arm muscle fatigue, soreness and cramps are relieved -Keep your knees warm -Other situations that require hot compresses Cold therapy: (not including ice pack) The heating pad has a built-in mesh bag (13.5*18cm), which can be put in an ice pack if necessary, which can be used for cold compresses. Heat setting temperature parameters for reference: 1. When using a USB cable to plug into the USB port of a desktop computer to get the source, the output is about 5V/DC: Highest (red): The temperature is 111.2H/44, high temperature, long time use. Medium (white): The temperature is 105.8H/41, warm, suitable for long-term use. Lowest (blue): The temperature is 100.4H/38C, low temperature, no need to use this setting. PS: If you connect it to a mobile power supply with an output current higher than 500mA, the temperature may be higher than the measured value above, and you will get more heat. 2. When using the AC adapter, the fixed output is 8.5V/DC: Highest (red): The temperature is 149H/65 , overheating and heating within a few seconds, after 10 minutes you may need to change to a lower heating setting. Medium (white): The temperature is 131H/55 , very hot, you may need to change to the lowest setting after 30 minutes. Lowest (blue): The temperature is 113H/45C, warm, suitable for long-term use and temperature buffering.