3 VIBRATION MODES & 3 HEAT LEVELS ：This knee massager with heat comes with 3 vibration modes & 3 heating levels(113°F-131°F-149°F). It further features 2 vibration motors, providing deep massage to the knee, elbow, and shoulder. CORDLESS CONVENIENCE ：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. 3-IN-1 HEATED KNEE 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 large & small 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. HIGH-QUALITY MATERIAL ：This knee massager is made of high-quality diving fabric with high elasticity and softness. Lightweight knee heating pads are easy to carry around, and you can use them at home or in the office. IDEAL GIFT ITEM ：The knee massager a type A-C data cable (without a charging head). HOMRELEXA provides 3-year warranty and customer support. You can also make it a thoughtful gift for your dear friends and beloved family members. Heated Knee Massager Shoulder Heating Pads Elbow Brace 3 in 1 with Vibration