?After Service?Any questions about this vibration knee massager with heating pad, please feel free to contact us via email. We will try to solve the matter within 24 hours!. ?Delicate Gift Set?This 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. ?Easy to Use?For 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 it again to adjust the temperature. Press the vibration button to turn on the vibration function, press it again to adjust the intensity of vibration. ?Knee/Shoulder/Elbow Massager?3 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. ?Cordless Knee Massager?Massage 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. ?Heating & Vibration Massage?The heated knee massager has 3 heating levels (Low - temperature range 45?/113? to 55?/131?. Medium - temperature range 56?/132.8? to 65?/149?. High - temperature range 66?/150.8? to 75?/167?) 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.