13D RESONANCE TECHNOLOGY: Knee massager adopts 3D around the knee type three dimensional massage, accurate massage of the important points of the knee, covering more massage area, release pressure, adjust the knee subhealth que state. 2HIGH FREQUENCY VIBRATION: Knee heating pad using 7000r/min high frequency vibration, 3 levels of strength selection, experience from shallow to deep relaxation state, to adapt to the different state of the massage strength needs. 3HEAT TECHNOLOGY: Heated knee brace through NTC temperature control large area heat, isothermal and equal frequency penetration heat transfer, deep penetration of subcutaneous tissue, deep release pressure, revitalize the knee. 4MASSAGE FUNCTION: Heated knee brace wrap with point design, massage more targeted, internal with mugwort bag placement bag, can be used freely with, mugwort heat deep penetration, to help maintain the knee (shipped without mugwort bag). 5STRONG ENDURANCE: Long endurance, continuous knee care, scientific advice for 15 minutes a day, HD screen, simplified button, with an extension belt, adapt to multiple joints such as the household elbow and knee. 6PERFECT FIT: Knee heating pad 360 degree seamless fit, all kinds of leg types can be used, the use of high elasticity and flexible fabric, greatly enhance the fit and comfort, compatible with different leg types.