Features: 1. Heating & Vibrating Massage Relieve Knee Pain: Our knee massager has 4 temperature modes, 3 heating, and vibration levels, provides for arthritis knee pain relief, and speeds up injury recovery. Heating function boosts circulation and further relieves muscle soreness and cramps. Help reduce joint pain, muscle stiffness, and joint swelling 2. Graphene: Graphene will release 6~16um far-infrared wavelengths close to the human body when it heats up, which can easily penetrate the skin and be absorbed by the human body. 3. Built-in Heating Pads: Fast heating in seconds, knee brace wrap ensure knees fully enjoy the massage heating effect. Suitable for shoulders, elbows, legs, and knees. 4. Vibration Knee Massager: Has powerful massage motors to deliver a soothing massage to tissue muscles. It provides sufficient relief for those suffering from chronic knee pain, meniscal tears, and muscular aches. 5. Premium Present: The heating knee massager is made of comfortable superior neoprene materials, it is an ideal gift for Christmas, Mother's Day, Father's Day, or Thanksgiving Day for mom, dad, parents, or friends. Specification: Material: Neoprene Color: Black Vibration Mode: 3 Mode Vibration Strength: 3 Level Tempreture Mode: 4 Mode Timing Time: 30 Minutes Input Voltage: DC5V Output Power: 5W Input Current: 1.5A Charging Port: Type C Product Size: 62 x 30 x 3cm Product Weight: 350g Certification: CE, ROHS Package Included: 1 x Heated Knee Brace