3D knee massage to release knee pressure The "circular knee" massages important knee points and covers a larger area to release pressure and adjust the knee's state of health. High-frequency vibrations for deep massage and flexible adjustment of massage intensity Experience the relaxation from shallow to deep, adapting to the different states of massage intensity The NTC temperature-controlled heating spreads to the whole foot, with equal temperature and frequency penetration, penetrating deep into the subcutaneous tissue, releasing pressure and revitalising the knee from the inside out. The massage is designed to be more targeted, simulating a human massage technique, for deep massage of the knee's empty space and more comfortable. New multi-part care one machine for shoulder/elbow/knee, with extension belt, adapt to multiple joints such as household elbow and knee flexible use