Buy 1 Get 3. 3 in 1 Heating Pad with VibrationIt's not only a heated knee brace but also works for shoulder, elbow, arms, thighs, calves, or ankles. We have extra straps for using it on other parts of the body, one long & one short, that enable the massager to be used on nearly any body part. Cordless Shoulder Heating Pads: Built in rechargeable 5000mAH battery, the heated knee massager is completely portable and you can wear it without being tied down by a cord. You can quite easily put them wherever is sore and continue about doing whatever it is you're doing without it getting in the way or falling off. Heating & Vibration Massage: The heated knee massager has 3 heating levels (Low - temperature range 113/45 to 131/55. Medium - temperature range 132.8/56 to 149/65. High - temperature range 150.8/66 to 167/75) levels and 3 vibration modes, providing great relax and comfort for your knee, elbow and shoulder. It boosts circulation, further relieves cramps. Easy Operation: Long press the button for 3 seconds to turn on/off the massage knee brace wrap. Fix the heating pad at the knee/elbow/shoulder position. Then touching the vibration button / temperature button to turn on the vibration function / heating function, touching it again to adjust the intensity. Press the on/off button to lock the heating pad while using, avoiding wrong touch setting. Practical Gift Ideas: Great device to have in hand for arthritic elder, man, woman, it's adjustable so different sized people can use it. Good Christmas gifts, Thanksgiving day gifts, Fathers Day gifts, Mothers Day gifts or daily gifts for your mom, dad, family, friends, teachers , beloved ones, and everyone you are care. Lifetime Warranty: All heated knee warmers pass strict multi inspection process which gives you multi guarantee. We will reply all question within 24 hours, please feel free to contact us. You will never loss money for our heated knee wrap.