About This Item Heating & Vibration MassageThe heated knee massager has 5 heating levels (From 40/104 to 60/140) levels and 3 vibration modes, providing great relax and comfort for your knee, elbow and shoulder. The heating function can boosts circulation, further relieves cramps. Cordless Knee MassagerMassage knee heating pad with vibrating core, which can simulate real kneading. Instead of staying near an outlet all the time, you can wear it wherever you want. You can wear it to work, study, sleep, do housework, etc. It is very suitable for the elderly and the young. Knee/Shoulder/Elbow Massager3 In 1 heated massager wrap pad is not only used for knees, but also for elbow and shoulder. Knee Heating Pad is equipped with extension straps, which can not only help to secure the knee massager in place, but also allows you to use it on your arms, thighs, knees, calves, ankles. Easy to UseFor this massage knee brace wrap, long press the button for 3 seconds to start or end the work. Fix the machine at the knee/elbow/shoulder position. Then press the temperature button to turn on the heating function. Press the vibration button to turn on the vibration function, press it again to adjust the intensity of vibration. Best GiftThis heated vibrating knee massager is a perfect gift choice for mom, dad, men, women, parents or friends for birthday,thanksgiving,Christmas gift. Show gratitude and care for people you love. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin