QUINEAR Knee Massager for Pain Relief,Air Compression Heating Pad for Knee,Heated Knee Warmers Wrap, Gifts for Men Women Dad Mom,3 Modes & 3 Intensities Featured Functions: Combine with air compression massage and heating therapy; 3 massage modes + 2 heating levels（Low 38℃/High 48℃）, the heat can be shut off if not prefer to use; Size adjustable with velcro design, can be used by most people; 20 minutes auto-off function, avoid overheated and ensure safety; Built-in panel control with 4 function buttons, easy to operate; Lightweight and portable design, easy to carry around with a free storage bag; Helpful for relieving joint pain, muscle stiffness and soreness, improve circulation and injury recovery.