Feature:1. It is very suitable for muscle pain and joint pain related to relieving fatigue, sprain and sprain, as well as related pains such as arthritis, half -moon plate, osteoarthritis, cystitis, etc.2. Quickly heating electric knee pads: a few seconds of calories, providing super comfortable therapy for knee arthritis relief and damage recovery, keep the knee warm, can also be used for calfs, thighs and arms to relieve muscle soreness and cramp.3. One -click button control and 3 -speed intelligent temperature adjustment: long press for 3 seconds to turn on/off, you can fully control the heating temperature and time.4. Adjustable and maintained in place: the two forks of the belt design, hooks and ring closed, which can wrap the heating pad to any leg or arm position that requires calories, without having to hold it with your hands. The built -in sugar bags in the ice pack can be used for cold treatment when necessary.5. Easy to carry and use: USB cables can be used for portable use, and can be inserted into any power supply with USB ports (such as power libraries, PC, laptop, desktop or automotive charger).USB output voltage: 5V/DCTemperature: 1 gear: 40, 2 gear: 45, 3 gear: 50Name: Electric Heated Knee PadSize: 56*20.5cmThis heat settings: the highest red, white medium, the lowest blueMaterial: Cloth+SBRNote:1.Due to the light and monitors effect, colors may have lightly difference.2.Please allow slightly size errors due to manual measurement. Thank you for your understand!3.1cm=0.39''.Package includes:1 * USB Electric Heated Knee Pad