ITEM NAME:Electric Heated Knee Pad Warm Leg Wrap Belt Brace Arthritis Pain Relie Nw.Supper comfortable for use. Lowest (blue): the temp is 96.3-104℉ï ¼Ë†36℃-38℃ï ¼â€°, lukewarm, no need to use this setting. With a built-in mash bag, put a ice bag in, you can use it for cold therapy if need be.